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Liu Q, Huang CS, Chen S, Zhu YQ, Huang XT, Zhao GY, Xu QC, Shi YH, Li W, Wang R, Yin XY. ADAR1 promotes cisplatin resistance in intrahepatic cholangiocarcinoma by regulating BRCA2 expression through A-to-I editing manner. Cell Prolif 2024:e13659. [PMID: 38773866 DOI: 10.1111/cpr.13659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 04/20/2024] [Accepted: 05/03/2024] [Indexed: 05/24/2024] Open
Abstract
Aberrant A-to-I RNA editing, mediated by ADAR1 has been found to be associated with increased tumourigenesis and the development of chemotherapy resistance in various types of cancer. Intrahepatic cholangiocarcinoma (iCCA) is a highly aggressive malignancy with a poor prognosis, and overcoming chemotherapy resistance poses a significant clinical challenge. This study aimed to clarify the roles of ADAR1 in tumour resistance to cisplatin in iCCA. We discovered that ADAR1 expression is elevated in iCCA patients, particularly in those resistant to cisplatin, and associated with poor clinical outcomes. Downregulation of ADAR1 can increase the sensitivity of iCCA cells to cisplatin treatment, whereas its overexpression has the inverse effect. By integrating RNA sequencing and Sanger sequencing, we identified BRCA2, a critical DNA damage repair gene, as a downstream target of ADAR1 in iCCA. ADAR1 mediates the A-to-I editing in BRCA2 3'UTR, inhibiting miR-3157-5p binding, consequently increasing BRCA2 mRNA and protein levels. Furthermore, ADAR1 enhances cellular DNA damage repair ability and facilitates cisplatin resistance in iCCA cells. Combining ADAR1 targeting with cisplatin treatment markedly enhances the anticancer efficacy of cisplatin. In conclusion, ADAR1 promotes tumour progression and cisplatin resistance of iCCA. ADAR1 targeting could inform the development of innovative combination therapies for iCCA.
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Affiliation(s)
- Qi Liu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Chen-Song Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Siyun Chen
- Key Laboratory of Stem Cells and Tissue Engineering (Sun Yat-sen University), Ministry of Education, Guangzhou, China
| | - Ying-Qin Zhu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Guang-Yin Zhao
- Department of Animal Experiment Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qiong-Cong Xu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yin-Hao Shi
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wen Li
- Laboratory of General Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ruizhi Wang
- Department of Laboratory Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Advanced Medical Technology Center, The First Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Liu ZD, Shi YH, Xu QC, Zhao GY, Zhu YQ, Li FX, Ma MJ, Ye JY, Huang XT, Wang XY, Xu X, Wang JQ, Zhao W, Yin XY. CSNK2A1 confers gemcitabine resistance to pancreatic ductal adenocarcinoma via inducing autophagy. Cancer Lett 2024; 585:216640. [PMID: 38290659 DOI: 10.1016/j.canlet.2024.216640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 12/07/2023] [Accepted: 01/11/2024] [Indexed: 02/01/2024]
Abstract
Gemcitabine, a pivotal chemotherapeutic agent for pancreatic ductal adenocarcinoma (PDAC), frequently encounters drug resistance, posing a significant clinical challenge with implications for PDAC patient prognosis. In this study, employing an integrated approach involving bioinformatic analyses from multiple databases, we unveil CSNK2A1 as a key regulatory factor. The patient-derived xenograft (PDX) model further substantiates the critical role of CSNK2A1 in gemcitabine resistance within the context of PDAC. Additionally, targeted silencing of CSNK2A1 expression significantly enhances sensitivity of PDAC cells to gemcitabine treatment. Mechanistically, CSNK2A1's transcriptional regulation is mediated by H3K27 acetylation in PDAC. Moreover, we identify CSNK2A1 as a pivotal activator of autophagy, and enhanced autophagy drives gemcitabine resistance. Silmitasertib, an established CSNK2A1 inhibitor, can effectively inhibit autophagy. Notably, the combinatorial treatment of Silmitasertib with gemcitabine demonstrates remarkable efficacy in treating PDAC. In summary, our study reveals CSNK2A1 as a potent predictive factor for gemcitabine resistance in PDAC. Moreover, targeted CSNK2A1 inhibition by Silmitasertib represents a promising therapeutic strategy to restore gemcitabine sensitivity in PDAC, offering hope for improved clinical outcomes.
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Affiliation(s)
- Zhi-De Liu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Yin-Hao Shi
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Qiong-Cong Xu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Guang-Yin Zhao
- Department of Animal Experiment Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Ying-Qin Zhu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Fu-Xi Li
- Key Laboratory of Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangzhou, 510080, China
| | - Ming-Jian Ma
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Jing-Yuan Ye
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Xi-Yu Wang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Xiang Xu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Jie-Qin Wang
- Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Wei Zhao
- Key Laboratory of Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangzhou, 510080, China.
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China.
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Ye JY, Fang P, Peng ZP, Huang XT, Xie JZ, Yin XY. A radiomics-based interpretable model to predict the pathological grade of pancreatic neuroendocrine tumors. Eur Radiol 2024; 34:1994-2005. [PMID: 37658884 PMCID: PMC10873440 DOI: 10.1007/s00330-023-10186-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 07/22/2023] [Accepted: 08/04/2023] [Indexed: 09/05/2023]
Abstract
OBJECTIVES To develop a computed tomography (CT) radiomics-based interpretable machine learning (ML) model to predict the pathological grade of pancreatic neuroendocrine tumors (pNETs) in a non-invasive manner. METHODS Patients with pNETs who underwent contrast-enhanced abdominal CT between 2010 and 2022 were included in this retrospective study. Radiomics features were extracted, and five radiomics-based ML models, namely logistic regression (LR), random forest (RF), support vector machine (SVM), XGBoost, and GaussianNB, were developed. The performance of these models was evaluated using a time-independent testing set, and metrics such as sensitivity, specificity, accuracy, and the area under the receiver operating characteristic curve (AUC) were calculated. The accuracy of the radiomics model was compared to that of needle biopsy. The Shapley Additive Explanation (SHAP) tool and the correlation between radiomics and biological features were employed to explore the interpretability of the model. RESULTS A total of 122 patients (mean age: 50 ± 14 years; 53 male) were included in the training set, whereas 100 patients (mean age: 48 ± 13 years; 50 male) were included in the testing set. The AUCs for LR, SVM, RF, XGBoost, and GaussianNB were 0.758, 0.742, 0.779, 0.744, and 0.745, respectively, with corresponding accuracies of 73.0%, 70.0%, 77.0%, 71.9%, and 72.9%. The SHAP tool identified two features of the venous phase as the most significant, which showed significant differences among the Ki-67 index or mitotic count subgroups (p < 0.001). CONCLUSIONS An interpretable radiomics-based RF model can effectively differentiate between G1 and G2/3 of pNETs, demonstrating favorable interpretability. CLINICAL RELEVANCE STATEMENT The radiomics-based interpretable model developed in this study has significant clinical relevance as it offers a non-invasive method for assessing the pathological grade of pancreatic neuroendocrine tumors and holds promise as an important complementary tool to traditional tissue biopsy. KEY POINTS • A radiomics-based interpretable model was developed to predict the pathological grade of pNETs and compared with preoperative needle biopsy in terms of accuracy. • The model, based on CT radiomics, demonstrated favorable interpretability. • The radiomics model holds potential as a valuable complementary technique to preoperative needle biopsy; however, it should not be considered a replacement for biopsy.
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Affiliation(s)
- Jing-Yuan Ye
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-Sen University, No.58 Zhongshan Er Road, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Peng Fang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-Sen University, No.58 Zhongshan Er Road, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Zhen-Peng Peng
- Department of Radiology, The First Affiliated Hospital of Sun Yat-Sen University, No.58 Zhongshan Er Road, Guangzhou, Guangdong, People's Republic of China
| | - Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-Sen University, No.58 Zhongshan Er Road, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Jin-Zhao Xie
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-Sen University, No.58 Zhongshan Er Road, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-Sen University, No.58 Zhongshan Er Road, Guangzhou, 510080, Guangdong, People's Republic of China.
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Huang XT, Qu XF, Zhou JW, Cai JP, Xie JZ, Chen W, Chen LH, Yin XY. Robotic-assisted organ-preserving or parenchymal-sparing pancreatectomy in pancreatic benign or low-grade malignant tumors: a single institute's experience. J Robot Surg 2024; 18:1. [PMID: 38175325 DOI: 10.1007/s11701-023-01787-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 10/22/2023] [Indexed: 01/05/2024]
Abstract
AIM Robotic-assisted pancreatectomy has been widely used. Organ-preserving pancreatectomy (OPP) and parenchymal-sparing pancreatectomy (PSP) has been gradually adopted for pancreatic benign or low-grade malignant tumors. This study aimed to evaluate the safety and efficacy of robotic-assisted OPP/PSP in our institute. METHODS Patients undergoing robotic-assisted OPS/PSP at First Affiliated Hospital of Sun Yat-sen University between July 2015 and October 2021 were included in this study. The short-term and long-term outcomes of patients were retrospectively analyzed. RESULTS Seventy-two patients were enrolled, including spleen-preserving distal pancreatectomy, central pancreatectomy, duodenum-preserving pancreatic head resection, and enucleation. Patients included were more likely to be young female (female: 46/72, median age: 47 years old). The median intraoperative blood loss and operation time was 50 ml and 255 min, respectively. Clinically relevant postoperative pancreatic fistula was 20.8% (grade B: 15/72, 20.8%; no grade C). The overall complication rate was 22.2% with the median postoperative length-of-stay of 8 days. At a median follow-up time of 28.5 months, the 5-year overall survival and recurrence-free survival rate were 100.0% and 100.0%, respectively. CONCLUSION The short-term and long-term outcomes of patients receiving robotic-assisted OPP/PSP were acceptable. Robotic-assisted OPP/PSP was a feasible and safe technique for pancreatic benign or low-grade malignant lesions.
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Affiliation(s)
- Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, 58 Zhongshan 2nd Rd, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Xiao-Fei Qu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, 58 Zhongshan 2nd Rd, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Jia-Wei Zhou
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, 58 Zhongshan 2nd Rd, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Jian-Peng Cai
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, 58 Zhongshan 2nd Rd, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Jin-Zhao Xie
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, 58 Zhongshan 2nd Rd, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Wei Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, 58 Zhongshan 2nd Rd, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Liu-Hua Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, 58 Zhongshan 2nd Rd, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, 58 Zhongshan 2nd Rd, Guangzhou, 510080, Guangdong, People's Republic of China.
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Huang XT, Xie JZ, Cai JP, Chen W, Chen LH, Yin XY. Learning curve of robotic-assisted splenic vessel-preserving spleen-preserving distal pancreatectomy by one single surgeon: a retrospective cohort study. BMC Surg 2023; 23:382. [PMID: 38114974 PMCID: PMC10729345 DOI: 10.1186/s12893-023-02294-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 12/12/2023] [Indexed: 12/21/2023] Open
Abstract
AIM Splenic vessel-preserving spleen-preserving distal pancreatectomy (SVP-SPDP) has a lower risk of splenic infarction than the splenicvessel-sacrificing SPDP, but it is more technically demanding. Learning curve of robotic-assisted SVP-SPDP (RSVP-SPDP) remains unreported. This study sought to analyze the perioperative outcomes and learning curve of RSVP-SPDP by one single surgeon. METHODS Seventy-four patients who were intended to receive RSVP-SPDP at the First Affiliated Hospital of Sun Yat-sen University between May 2015 and January 2023 were included. The learning curve were retrospectively analyzed by using cumulative sum (CUSUM) analyses. RESULTS Sixty-two patients underwent RSVP-SPDP (spleen preservation rate: 83.8%). According to CUSUM curve, the operation time (median, 318 vs. 220 min; P < 0.001) and intraoperative blood loss (median, 50 vs. 50 mL; P = 0.012) was improved significantly after 16 cases. Blood transfusion rate (12.5% vs. 3.4%; P = 0.202), postoperative major morbidity rate (6.3% vs. 3.4%; P = 0.524), and postoperative length-of-stay (median, 10 vs. 8 days; P = 0.120) improved after 16 cases but did not reach statistical difference. None of the patients had splenic infarction or abscess postoperatively. CONCLUSION RSVP-SPDP was a safe and feasible approach for selected patients after learning curve. The improvement of operation time and intraoperative blood loss was achieved after 16 cases.
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Affiliation(s)
- Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan 2nd Rd, Guangzhou, Guangdong, 510080, P. R. China
| | - Jin-Zhao Xie
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan 2nd Rd, Guangzhou, Guangdong, 510080, P. R. China
| | - Jian-Peng Cai
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan 2nd Rd, Guangzhou, Guangdong, 510080, P. R. China
| | - Wei Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan 2nd Rd, Guangzhou, Guangdong, 510080, P. R. China
| | - Liu-Hua Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan 2nd Rd, Guangzhou, Guangdong, 510080, P. R. China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan 2nd Rd, Guangzhou, Guangdong, 510080, P. R. China.
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Huang XT, Cai JP, Yin XY. Robotic-assisted hepatopancreatoduodenectomy and resection of pancreatic tail for one multiple endocrine neoplasia type 1 secreting multiple hormones. Hepatobiliary Surg Nutr 2023; 12:818-821. [PMID: 37886188 PMCID: PMC10598322 DOI: 10.21037/hbsn-23-315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 08/31/2023] [Indexed: 10/28/2023]
Affiliation(s)
- Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jian-Peng Cai
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Zhu XX, Li JH, Fang P, Qu XF, Liang LJ, Lai JM, Yin XY. Renin-angiotensin system inhibitors improve the survival of cholangiocarcinoma: a propensity score-matched cohort study. BMC Cancer 2023; 23:826. [PMID: 37670280 PMCID: PMC10478452 DOI: 10.1186/s12885-023-11152-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 07/04/2023] [Indexed: 09/07/2023] Open
Abstract
BACKGROUND Hypertension is a risk factor for cholangiocarcinoma (CCA). The effect of anti-hypertensive drugs on the prognosis of CCA is not clear. METHODS This is a retrospective study of 102 patients (56.9% males, median age 66 years) diagnosed with CCA and hypertension concurrently and received radical surgery (R0), with a median follow-up of 36.7 months. Kaplan-Meier analysis, Cox regressions, and propensity score (PS) matching were applied for statistical analysis. RESULTS Results of multivariable cox analysis showed that renin-angiotensin system inhibitors (RASis) usage was a protective factor for progression-free survival (PFS) (hazard ratio [HR] = 0.55, 95% confidence interval [95% CI]: 0.32-0.96) and overall survival (OS) (HR = 0.40, 95% CI: 0.20-0.79), respectively. Calcium channel blockers, diuretics, and β-blockers didn't show significant associations. The association of RASis usage and PFS and OS was derived by PS matching, with a cohort of 28 RASis users and 56 RASis non-users. The median PFS and OS of RASis users (PFS, 17.6 months (9.2-34.4); OS, 24.8 months (16.5-42.3)) were longer than RASis non-users (PFS, 10.5 months (4.1-24.1); OS, 14.6 months (10.6-28.4)). The 1 year, 2 years, and 3 years' survival rates of RASis users (89.1%, 77.0%, and 65.5%) were higher than RASis non-users (70.9%, 54.0%, and 40.0%). CONCLUSIONS RASis usage improves the survival of patients with CCA and hypertension concurrently.
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Affiliation(s)
- Xiao-Xu Zhu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan 2nd Rd, Guangzhou, Guangdong, 510080, China
| | - Jian-Hui Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan 2nd Rd, Guangzhou, Guangdong, 510080, China
| | - Peng Fang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan 2nd Rd, Guangzhou, Guangdong, 510080, China
| | - Xiao-Fei Qu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan 2nd Rd, Guangzhou, Guangdong, 510080, China
| | - Li-Jian Liang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan 2nd Rd, Guangzhou, Guangdong, 510080, China
| | - Jia-Ming Lai
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan 2nd Rd, Guangzhou, Guangdong, 510080, China.
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan 2nd Rd, Guangzhou, Guangdong, 510080, China.
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Liu R, Abu Hilal M, Wakabayashi G, Han HS, Palanivelu C, Boggi U, Hackert T, Kim HJ, Wang XY, Hu MG, Choi GH, Panaro F, He J, Efanov M, Yin XY, Croner RS, Fong YM, Zhu JY, Wu Z, Sun CD, Lee JH, Marino MV, Ganpati IS, Zhu P, Wang ZZ, Yang KH, Fan J, Chen XP, Lau WY. International experts consensus guidelines on robotic liver resection in 2023. World J Gastroenterol 2023; 29:4815-4830. [PMID: 37701136 PMCID: PMC10494765 DOI: 10.3748/wjg.v29.i32.4815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/22/2023] [Accepted: 08/09/2023] [Indexed: 08/25/2023] Open
Abstract
The robotic liver resection (RLR) has been increasingly applied in recent years and its benefits shown in some aspects owing to the technical advancement of robotic surgical system, however, controversies still exist. Based on the foundation of the previous consensus statement, this new consensus document aimed to update clinical recommendations and provide guidance to improve the outcomes of RLR clinical practice. The guideline steering group and guideline expert group were formed by 29 international experts of liver surgery and evidence-based medicine (EBM). Relevant literature was reviewed and analyzed by the evidence evaluation group. According to the WHO Handbook for Guideline Development, the Guidance Principles of Development and Amendment of the Guidelines for Clinical Diagnosis and Treatment in China 2022, a total of 14 recommendations were generated. Among them were 8 recommendations formulated by the GRADE method, and the remaining 6 recommendations were formulated based on literature review and experts' opinion due to insufficient EBM results. This international experts consensus guideline offered guidance for the safe and effective clinical practice and the research direction of RLR in future.
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Affiliation(s)
- Rong Liu
- Faculty of Hepato-Pancreato-Biliary Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing 100000, China
| | - Mohammed Abu Hilal
- Hepatobiliary Pancreatic, Robotic & Laparoscopic Surgery, Poliambulanza Foundation Hospital, Brescia 25100, Italy
| | - Go Wakabayashi
- Center for Advanced Treatment of HBP Diseases, Ageo Central General Hospital, Saitama 362-0075, Japan
| | - Ho-Seong Han
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul 03080, South Korea
| | - Chinnusamy Palanivelu
- GEM Hospital & Research Centre, GEM Hospital & Research Centre, Coimbatore 641045, India
| | - Ugo Boggi
- Division of General and Transplant Surgery, University of Pisa, Pisa 56126, Italy
| | - Thilo Hackert
- Department of General, Visceral and Thoracic Surgery, University Hospital Hamburg-Eppendorf, Hamburg 20251, Germany
| | - Hong-Jin Kim
- Department of Surgery, Yeungnam University Hospital, Daegu 42415, South Korea
| | - Xiao-Ying Wang
- Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Ming-Gen Hu
- Faculty of Hepato-Pancreato-Biliary Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing 100000, China
| | - Gi Hong Choi
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Severance Hospital, Yonsei University, College of Medicine, Seoul 03722, South Korea
| | - Fabrizio Panaro
- Department of Surgery/Division of Robotic and HBP Surgery, Montpellier University Hospital-School of Medicine, Montpellier 34090, France
| | - Jin He
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21218, United States
| | - Mikhail Efanov
- Department of Hepato-Pancreato-Biliary Surgery, Moscow Clinical Scientific Center, Moscow 111123, Russia
| | - Xiao-Yu Yin
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, Guangdong Province, China
| | - Roland S Croner
- Department of General, Visceral, Vascular and Transplant Surgery, University Hospital Magdeburg, Magdeburg 39120, Germany
| | - Yu-Man Fong
- Department of Surgery, City of Hope Medical Center, Duarte, CA 91010, United States
| | - Ji-Ye Zhu
- Department of Hepatobiliary Surgery, Peking University People’s Hospital, Beijing 100000, China
| | - Zheng Wu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, Shaanxi Province, China
| | - Chuan-Dong Sun
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong Province, China
| | - Jae Hoon Lee
- Division of Hepatobiliary & Pancreatic surgery, Asan Medical Center, University of Ulsan College of Medicine, Ulsan 682, South Korea
| | - Marco V Marino
- General Surgery Department, F. Tappeiner Hospital, Merano 39012, Italy
| | - Iyer Shridhar Ganpati
- Hepatobiliary and Pancreatic Surgery, National University Hospital, Singapore 189969, Singapore
| | - Peng Zhu
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, Hubei Province, China
| | - Zi-Zheng Wang
- Department of Hepatobiliary Surgery, Senior Department of Hepatology, The Fifth Medical Center of Chinese PLA General Hospital, Beijing 100000, China
| | - Ke-Hu Yang
- Evidence-Based Medicine Center, Lanzhou University, Lanzhou 730000, Gansu Province, China
| | - Jia Fan
- Zhongshan Hospital, Fudan University, Shanghai 200000, China
| | - Xiao-Ping Chen
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, Hubei Province, China
| | - Wan Yee Lau
- Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China
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9
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Huang XT, Wang XY, Xie JZ, Cai JP, Chen W, Chen LH, Yin XY. Learning curves of resection and reconstruction procedures in robotic-assisted pancreatoduodenectomy by a single surgeon: a retrospective cohort study of 160 consecutive cases. Gastroenterol Rep (Oxf) 2023; 11:goad042. [PMID: 37502197 PMCID: PMC10371495 DOI: 10.1093/gastro/goad042] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 07/04/2023] [Accepted: 07/04/2023] [Indexed: 07/29/2023] Open
Abstract
Background Robotic-assisted pancreatoduodenectomy (RPD) has been routinely performed in a few of centers worldwide. This study aimed to evaluate the perioperative outcomes and the learning curves of resection and reconstruction procedures in RPD by one single surgeon. Methods Consecutive patients undergoing RPD by a single surgeon at the First Affiliated Hospital of Sun Yat-sen University (Guangzhou, China) between July 2016 and October 2022 were included. The perioperative outcomes and learning curves were retrospectively analysed by using cumulative sum (CUSUM) analyses. Results One-hundred and sixty patients were included. According to the CUSUM curve, the times of resection and reconstruction procedures were shortened significantly after 30 cases (median, 284 vs 195 min; P < 0.001) and 45 cases (median, 138 vs 120 min; P < 0.001), respectively. The estimated intraoperative blood loss (median, 100 vs 50 mL; P < 0.001) and the incidence of clinically relevant post-operative pancreatic fistula (29.2% vs 12.5%; P = 0.035) decreased significantly after 20 and 120 cases, respectively. There were no significant differences in the total number of lymph nodes examined, post-operative major complications, or post-operative length-of-stay between the two groups. Conclusions Optimization of the resection procedure and the acquisition of visual feedback facilitated the performance of RPD. RPD was a safe and feasible procedure in the selected patients.
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Affiliation(s)
| | | | | | - Jian-Peng Cai
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Wei Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Liu-Hua Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Xiao-Yu Yin
- Corresponding author. Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan 2nd Rd, Guangzhou, Guangdong 510080, P. R. China.
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Wu X, Li JH, Xu L, Li YX, Zhu XX, Wang XY, Wu X, Zhao W, Ni X, Yin XY. SUMO specific peptidase 3 halts pancreatic ductal adenocarcinoma metastasis via deSUMOylating DKC1. Cell Death Differ 2023:10.1038/s41418-023-01175-4. [PMID: 37188742 DOI: 10.1038/s41418-023-01175-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 04/20/2023] [Accepted: 04/28/2023] [Indexed: 05/17/2023] Open
Abstract
In the past few decades, advances in the outcomes of patients suffering from pancreatic ductal adenocarcinoma (PDAC) have lagged behind these gained in the treatment of many other malignancies. Although the pivotal role of the SUMO pathway in PDAC has been illustrated, the underlying molecule drivers have yet to be fully elucidated. In the present study, we identified SENP3 as a potential suppressor of PDAC progression through an in vivo metastatic model. Further studies revealed that SENP3 inhibited PDAC invasion in a SUMO system dependent fashion. Mechanistically, SENP3 interacted with DKC1 and, as such, catalyzed the deSUMOylation of DKC1, which accepted SUMO3 modifiers at three lysine residues. SENP3-mediated deSUMOylation caused DKC1 instability and disruption of the interaction between snoRNP proteins, which contributed to the impaired migration ability of PDAC. Indeed, overexpression of DKC1 abated the anti-metastasis effect of SENP3, and DKC1 was elevated in PDAC specimens and associated with a poor prognosis in PDAC patients. Collectively, our findings shed light on the essential role of SENP3/DKC1 axis in the progression of PDAC.
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Affiliation(s)
- Xiao Wu
- Department of Pancreato-Biliary Surgery, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, China
| | - Jian-Hui Li
- Department of Pancreato-Biliary Surgery, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, China
| | - Long Xu
- Department of Physiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Ya-Xiong Li
- Department of Pancreato-Biliary Surgery, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, China
| | - Xiao-Xu Zhu
- Department of Pancreato-Biliary Surgery, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, China
| | - Xi-Yu Wang
- Department of Pancreato-Biliary Surgery, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, China
| | - Xingmei Wu
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, China
| | - Wei Zhao
- Key Laboratory of Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangzhou, 510080, China.
| | - Xuhao Ni
- Department of Pancreato-Biliary Surgery, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, China.
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, China.
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11
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Yin XY, Tang XH, Wang SX, Zhao YC, Jia M, Yang JJ, Ji MH, Shen JC. HMGB1 mediates synaptic loss and cognitive impairment in an animal model of sepsis-associated encephalopathy. J Neuroinflammation 2023; 20:69. [PMID: 36906561 PMCID: PMC10007818 DOI: 10.1186/s12974-023-02756-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 03/02/2023] [Indexed: 03/13/2023] Open
Abstract
BACKGROUND Microglial activation-mediated neuroinflammation is one of the essential pathogenic mechanisms of sepsis-associated encephalopathy (SAE). Mounting evidence suggests that high mobility group box-1 protein (HMGB1) plays a pivotal role in neuroinflammation and SAE, yet the mechanism by which HMGB1 induces cognitive impairment in SAE remains unclear. Therefore, this study aimed to investigate the mechanism of HMGB1 underlying cognitive impairment in SAE. METHODS An SAE model was established by cecal ligation and puncture (CLP); animals in the sham group underwent cecum exposure alone without ligation and perforation. Mice in the inflachromene (ICM) group were continuously injected with ICM intraperitoneally at a daily dose of 10 mg/kg for 9 days starting 1 h before the CLP operation. The open field, novel object recognition, and Y maze tests were performed on days 14-18 after surgery to assess locomotor activity and cognitive function. HMGB1 secretion, the state of microglia, and neuronal activity were measured by immunofluorescence. Golgi staining was performed to detect changes in neuronal morphology and dendritic spine density. In vitro electrophysiology was performed to detect changes in long-term potentiation (LTP) in the CA1 of the hippocampus. In vivo electrophysiology was performed to detect the changes in neural oscillation of the hippocampus. RESULTS CLP-induced cognitive impairment was accompanied by increased HMGB1 secretion and microglial activation. The phagocytic capacity of microglia was enhanced, resulting in aberrant pruning of excitatory synapses in the hippocampus. The loss of excitatory synapses reduced neuronal activity, impaired LTP, and decreased theta oscillation in the hippocampus. Inhibiting HMGB1 secretion by ICM treatment reversed these changes. CONCLUSIONS HMGB1 induces microglial activation, aberrant synaptic pruning, and neuron dysfunction in an animal model of SAE, leading to cognitive impairment. These results suggest that HMGB1 might be a target for SAE treatment.
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Affiliation(s)
- Xiao-Yu Yin
- Department of Anesthesiology, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Xiao-Hui Tang
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
| | - Shi-Xu Wang
- Department of Anesthesiology, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Yong-Chang Zhao
- Department of Anesthesiology, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Min Jia
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
| | - Jian-Jun Yang
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China.
| | - Mu-Huo Ji
- Department of Anesthesiology, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, 210011, China.
| | - Jin-Chun Shen
- Department of Anesthesiology, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China.
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12
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Xu X, Liang JH, Xu QC, Yin XY. Development and Verification of a novel cuproptosis- and immune-associated based prognostic genetic signature for pancreatic ductal adenocarcinoma. Clin Res Hepatol Gastroenterol 2023; 47:102089. [PMID: 36707046 DOI: 10.1016/j.clinre.2023.102089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 12/21/2022] [Accepted: 01/23/2023] [Indexed: 01/26/2023]
Abstract
OBJECTIVE Pancreatic ductal adenocarcinoma (PDAC) is a malignancy with a dismal prognosis. Cuproptosis, a novel mechanism mediated by protein lipoylation, results in acute proteotoxic stress and ultimately cell death. However, the clinical impacts of cuproptosis-associated genes and their relationship with immune status in PDAC have not been documented. In this study, we aimed at constructing a cuproptosis- and immune-associated prognostic signature to stratify and predict the prognosis for PDAC patients. METHODS The gene expression profiles of 176 PDAC patients from The Cancer Genome Atlas and 167 normal pancreas tissues from the Genotype-Tissue Expression Project were analyzed for differentially expressed genes (DEGs) between PDAC and normal tissues. Pearson correlation analyses were performed to screen out cuproptosis- and immune-associated DEGs. The risk signature of DEGs was constructed using the least absolute shrinkage and selection operator (LASSO) Cox regression analysis, which was validated in the Gene Expression Omnibus (GEO) cohort (n = 114). The immune characteristics in the two risk groups were evaluated using single-sample gene set enrichment analysis and ESTIMATE algorithms. RESULTS A total of 91 cuproptosis- and immune-associated DEGs were screened out, and eight prognostic-related genes were identified using LASSO Cox regression. The prognostic-related genes were then used to construct a risk scoring model, which stratified patients into low- and high-risk groups and were further verified in the external GEO database. The patients in the high-risk group had significantly shorter overall survival than those in the low-risk group. A nomogram based on the risk signature was then constructed. Immune infiltration evaluation suggested that immune status was more activated in the low-risk group. The mutation spectrum also differed between high- and low-risk groups. CONCLUSIONS Our cuproptosis- and immune-associated genetic risk signature could be a prognostic biomarker for PDAC. Cuproptosis might be a promising therapeutic target for PDAC.
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Affiliation(s)
- Xiang Xu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong, China
| | - Jia-Hua Liang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong, China
| | - Qiong-Cong Xu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong, China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong, China.
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13
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Yuan F, Yin XY, Huang Y, Cai XW, Jin L, Dai GC, Zang YC, Sun Y, Liu XL, Xue BX. Exosomal miR-93-5p as an important driver of bladder cancer progression. Transl Androl Urol 2023; 12:286-299. [PMID: 36915886 PMCID: PMC10006004 DOI: 10.21037/tau-22-872] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 02/06/2023] [Indexed: 03/16/2023] Open
Abstract
Background Tumor-derived exosomes are involved in the process of tumor metastasis and angiogenesis. MicroRNAs (miRNAs) are the most widely investigated factors in exosomes. Therefore, we hope to find a new therapeutic target in bladder cancer (BLCA), which has high incidence rate and mortality. Methods Exosomal microRNA(miR)-93-5p expression level, downstream target molecules, and biological functions were examined with bioinformatics technology. Exosomes were extracted by sequential differential centrifugation and verified by transmission electron microscopy. The exosomal miR-93-5p on cell proliferation, invasion, and angiogenesis abilities in 5637 and T24 cells was determined by Cell Counting Kit 8 (CCK-8), colony-forming assay, Transwell assay, and vascular ring formation assay. A mouse xenograft model with intratumor injection was adopted to evaluate the correlation between BLCA-derived exosomes and tumor growth in vivo. Results The results revealed that exosomes play an important role in the biological progression of BLCA, with miR-93-5p being a particularly important molecule. Compared to normal cells, more malignant cells release more exosomal miR-93-5p, and tumor-derived exosomal miR-93-5p could significantly promote cell proliferation, invasion, and angiogenesis in vitro and in vivo. We identified phosphatase and tensin homolog (PTEN) as the most significant target of miR-93-5p in BLCA and human umbilical vein endothelial cells. Conclusions Our study successfully revealed the biological role and mechanism of BLCA-derived exosomes in tumor progression. Target at tumor exosomes and exosomal miR-93-5p may be an effective treatment in BLCA.
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Affiliation(s)
- Feng Yuan
- Department of Urology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiao-Yu Yin
- School of Biology and Basic Medical Sciences, Medical College of Soochow University, Suzhou, China
| | - Yu Huang
- School of Biology and Basic Medical Sciences, Medical College of Soochow University, Suzhou, China
| | - Xiao-Wei Cai
- Department of Urology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Lu Jin
- Department of Urology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Guang-Cheng Dai
- Department of Urology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Ya-Cheng Zang
- Department of Urology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Yi Sun
- School of Biology and Basic Medical Sciences, Medical College of Soochow University, Suzhou, China
| | - Xiao-Long Liu
- Department of Urology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Bo-Xin Xue
- Department of Urology, The Second Affiliated Hospital of Soochow University, Suzhou, China
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14
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Shi YH, Xu QC, Zhu YQ, Liu ZD, Zhao GY, Liu Q, Wang XY, Wang JQ, Xu X, Su Q, Lai JM, Huang CS, Yin XY. Imatinib facilitates gemcitabine sensitivity by targeting epigenetically activated PDGFC signaling in pancreatic cancer. Mol Ther 2023; 31:503-516. [PMID: 36384875 PMCID: PMC9931609 DOI: 10.1016/j.ymthe.2022.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 10/14/2022] [Accepted: 11/08/2022] [Indexed: 11/17/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a malignant tumor with poor prognosis. Gemcitabine-based chemotherapy has become one of the main modalities of its management. However, gemcitabine resistance frequently occurs, leading to failure of PDAC therapy. Platelet-derived growth factors (PDGFs) and their receptors play important roles in cancer progression and chemoresistance. We aimed to investigate the biological function and therapeutic significance of platelet-derived growth factor C (PDGFC) in drug-resistant PDAC. Our study showed that PDGFC was abnormally highly expressed in gemcitabine-resistant PDAC. Silencing PDGFC expression can enhance the therapeutic effect of gemcitabine on PDAC. Mechanistically, the transcription of PDGFC is mediated by H3K27 acetylation, and PDGFC promotes gemcitabine resistance by activating the PDGFR-PI3K-AKT signaling pathway. The PDGFR inhibitor imatinib inhibits the PDGFR pathway. Imatinib and gemcitabine have a synergistic effect on the treatment of PDAC, and imatinib can significantly enhance the anti-tumor effect of gemcitabine in a drug-resistant PDAC patient-derived xenograft model. In conclusion, PDGFC is a potential predictor of gemcitabine-resistant PDAC. Imatinib inhibits PDGFR activation to promote gemcitabine sensitivity in PDAC. Combined modality regimen of imatinib and gemcitabine is likely to translate into clinical trial for the treatment of PDGFC-associated gemcitabine-resistant patients.
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Affiliation(s)
- Yin-Hao Shi
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Qiong-Cong Xu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Ying-Qin Zhu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Zhi-De Liu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Guang-Yin Zhao
- Department of Animal Experiment Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Qi Liu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Xi-Yu Wang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Jie-Qin Wang
- Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Xiang Xu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Qiao Su
- Department of Animal Experiment Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Jia-Ming Lai
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Chen-Song Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China.
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China.
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Huang XT, Xie JZ, Chen LH, Cai JP, Chen W, Liang LJ, Zhang N, Yin XY. Values of debulking surgery for unresectable well-differentiated metastatic pancreatic neuroendocrine tumors: a comparative study. Gastroenterol Rep (Oxf) 2023; 11:goad010. [PMID: 36911142 PMCID: PMC9995090 DOI: 10.1093/gastro/goad010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 11/30/2022] [Accepted: 02/14/2023] [Indexed: 03/10/2023] Open
Abstract
Background and objective The value of debulking surgery for unresectable well-differentiated metastatic pancreatic neuroendocrine tumor (m-PNET) remains poorly defined. This study aimed to evaluate the outcomes of m-PNET following debulking surgery in our institute. Methods Patients with well-differentiated m-PNET in our hospital between February 2014 and March 2022 were collected. Clinicopathological and long-term outcomes of patients treated with radical resection, debulking surgery, and conservative therapy were compared retrospectively. Results Fifty-three patients with well-differentiated m-PNET were reviewed, including 47 patients with unresectable m-PNET (debulking surgery, 25; conservative therapy, 22) and 6 patients with resectable m-PNET (radical resection). Patients undergoing debulking surgery had a post-operative Clavien-Dindo ≥ III complication rate of 16.0% without mortality. The 5-year overall survival (OS) rate of patients treated with debulking surgery was significantly higher than that of those treated with conservative therapy alone (87.5% vs 37.8%, log-rank P = 0.022). Besides, the 5-year OS rate of patients treated with debulking surgery was comparable to that of patients with resectable m-PNET undergoing radical resection (87.5% vs 100%, log-rank P = 0.724). Conclusions Patients with unresectable well-differentiated m-PNET who underwent resection had better long-term outcomes than those who received conservative therapy alone. The 5-year OS of patients undergoing debulking surgery and radical resection were comparable. Debulking surgery could be considered for patients with unresectable well-differentiated m-PNET if no contraindication exists.
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Affiliation(s)
- Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Jin-Zhao Xie
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Liu-Hua Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Jian-Peng Cai
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Wei Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Li-Jian Liang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Ning Zhang
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
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16
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Huang XT, Xie JZ, Cai JP, Chen W, Chen LH, Liang LJ, Yin XY. Evaluation of the short-term outcomes of robotic-assisted radical resection for perihilar cholangiocarcinoma: a propensity-scored matching analysis. Gastroenterol Rep (Oxf) 2023; 11:goad018. [PMID: 37051578 PMCID: PMC10085544 DOI: 10.1093/gastro/goad018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/19/2023] [Accepted: 03/16/2023] [Indexed: 04/14/2023] Open
Abstract
Background The application of robotic-assisted radical resection in perihilar cholangiocarcinoma (pCCA) remains poorly defined. This study aimed to evaluate the safety and efficacy of robotic-assisted radical resection for pCCA in our institute. Methods Between July 2017 and July 2022, pCCA patients undergoing robotic-assisted and open radical resection at First Affiliated Hospital of Sun Yat-sen University (Guangzhou, China) were included. The short-term outcomes were compared by using propensity-scored matching (PSM) analysis. Results Eighty-six pCCA patients were enrolled. After PSM at a ratio of 1:2, 10 and 20 patients were assigned to the robotic-assisted and open groups, respectively. There were no significant disparities in the clinicopathological features between the two groups. The robotic-assisted group had significantly longer operation time (median: 548 vs 353 min, P = 0.004) and larger total number of lymph nodes examined (median: 11 vs 5, P = 0.010) than the open group. The robotic-assisted group tended to have a lower intraoperative blood loss (median: 125 vs 350 mL, P = 0.067), blood transfusion rates (30.0% vs 70.0%, P = 0.056), and post-operative overall morbidities (30.0% vs 70.0%, P = 0.056) than the open group, even though the differences were not statistically significant. There were no significant differences in the negative resection margin, post-operative major morbidities, or post-operative length-of-stay between the robotic-assisted and open groups (all P > 0.05). Conclusions Robotic-assisted radical resection of pCCA may get a larger total number of lymph nodes examined than open surgery. Provided robotic-assisted surgery may be a feasible and safe technique for selected pCCA patients.
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Affiliation(s)
| | | | - Jian-Peng Cai
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Wei Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Liu-Hua Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Li-Jian Liang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Xiao-Yu Yin
- Corresponding author. Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan 2nd Rd, Guangzhou, Guangdong 510080, P. R. China. Tel: +86-20-87606263.
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17
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Huang XT, Xie JZ, Huang CS, Li JH, Chen W, Liang LJ, Yin XY. Development and validation of nomogram to predict lymph node metastasis preoperatively in patients with pancreatic neuroendocrine tumor. HPB (Oxford) 2022; 24:2112-2118. [PMID: 36127226 DOI: 10.1016/j.hpb.2022.08.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/29/2022] [Accepted: 08/31/2022] [Indexed: 01/24/2023]
Abstract
BACKGROUND Routine lymphadenectomy in pancreatic neuroendocrine tumors (pNETs) is debated. There lacks accurate model to predict lymph node metastasis (LNM) preoperatively in pNETs. Therefore, this study aimed at developing a nomogram in predicting LNM in pNETs preoperatively. METHODS Patients undergoing surgery from Surveillance, Epidemiology, and End Results (SEER) database (design cohort, n = 2742) and First Affiliated Hospital of Sun Yat-sen University (validation cohort, n = 136) were enrolled. Nomogram was developed based on risk factors determined by logistic regression analyses. The performance of nomogram was evaluated by area under receiver operating characteristics curve (AUC), calibration curve, and decision curve analysis. RESULTS In design cohort, 915 of 2742 patients had LNM. Tumor in the pancreatic head, T stage, and tumor size were significantly associated with LNM (all p < 0.05). Prediction of nomogram was accurate with AUC of 0.776 in design cohort and 0.622 in validation cohort. The nomogram showed good agreement between prediction and observation in the design and validation cohort. Based on nomogram-predicted risk, patients with higher risk of LNM had worse overall survival over patients with lower risk of LNM (log-rank p < 0.001). CONCLUSIONS The novel nomogram could accurately predict LNM in pNET preoperatively. For patients with high risk of LNM, lymphadenectomy was recommended.
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Affiliation(s)
- Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Jin-Zhao Xie
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Chen-Song Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Jian-Hui Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Wei Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Li-Jian Liang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China.
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Huang XT, Xie JZ, Cai JP, Fang P, Huang CS, Chen W, Liang LJ, Yin XY. Values of spleen-preserving distal pancreatectomy in well-differentiated non-functioning pancreatic neuroendocrine tumors: a comparative study. Gastroenterol Rep (Oxf) 2022; 10:goac056. [PMID: 36263393 PMCID: PMC9562143 DOI: 10.1093/gastro/goac056] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/18/2022] [Accepted: 09/25/2022] [Indexed: 11/14/2022] Open
Abstract
Background The feasibility of spleen-preserving distal pancreatectomy (SPDP) to treat well-differentiated non-functioning pancreatic neuroendocrine tumors (NF-pNETs) located at the body and/or tail of the pancreas remains controversial. Distal pancreatectomy with splenectomy (DPS) has been widely applied in the treatment of NF-pNETs; however, it may increase the post-operative morbidities. This study aimed to evaluate whether SPDP is inferior to DPS in post-operative outcomes and survivals when being used to treat patients with NF-pNETs in our institute. Methods Clinicopathological features of patients with NF-pNETs who underwent curative SPDP or DPS at the First Affiliated Hospital of Sun Yat-sen University (Guangzhou, China) between January 2010 and January 2022 were collected. Short-term outcomes and 5-year survivals were compared between patients undergoing SPDP and those undergoing DPS. Results Sixty-three patients (SPDP, 27; DPS, 36) with well-differentiated NF-pNETs were enrolled. All patients had grade 1/2 tumors. After identifying patients with T1-T2 NF-pNETs (SPDP, 27; DPS, 15), there was no disparity between the SPDP and DPS groups except for tumor size (median, 1.4 vs 2.6 cm, P = 0.001). There were no differences in operation time (median, 250 vs 295 min, P = 0.478), intraoperative blood loss (median, 50 vs 100 mL, P = 0.145), post-operative major complications (3.7% vs 13.3%, P = 0.287), clinically relevant post-operative pancreatic fistula (22.2% vs 6.7%, P = 0.390), or post-operative hospital stays (median, 9 vs 9 days, P = 0.750) between the SPDP and DPS groups. Kaplan-Meier curve showed no significant differences in the 5-year overall survival rate (100% vs 100%, log-rank P > 0.999) or recurrence-free survival (100% vs 100%, log-rank P > 0.999) between patients with T1-T2 NF-pNETs undergoing SPDP and those undergoing DPS. Conclusions In patients with T1-T2 well-differentiated NF-pNETs, SPDP could achieve comparable post-operative outcomes and prognosis compared with DPS.
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Affiliation(s)
| | | | - Jian-Peng Cai
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Peng Fang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Chen-Song Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Wei Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Li-Jian Liang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Xiao-Yu Yin
- Corresponding author. Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan 2nd Rd, Guangzhou, Guangdong 510080, P. R. China. Tel: +8613902290933;
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Li YX, Zhu XX, Wu X, Li JH, Ni XH, Li SJ, Zhao W, Yin XY. ACLP promotes activation of cancer-associated fibroblasts and tumor metastasis via ACLP-PPARγ-ACLP feedback loop in pancreatic cancer. Cancer Lett 2022; 544:215802. [PMID: 35732215 DOI: 10.1016/j.canlet.2022.215802] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 06/05/2022] [Accepted: 06/16/2022] [Indexed: 11/25/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is an aggressive malignancy with poor prognosis. Its fibrotic tumor microenvironment (TME) plays a crucial role in promoting tumor invasion and metastasis, which eventually leads to a dismal 5-year survival rate in PDAC patients. Aortic carboxypeptidase-like protein (ACLP) promotes tissue fibrosis in benign diseases. However, its role in cancer-associated fibrosis remains unelucidated. Here, we show that ACLP was mainly expressed in cancer-associated fibroblasts (CAFs) but not in cancer cells and highly expressed in PDAC tissues. High ACLP expression was correlated with poor overall survival. Moreover, ACLP expression in PDAC patients with liver metastases was higher than that in PDAC patients without liver metastases. By detecting activation marker expression and CAF contractility and motility, we found that ACLP promoted CAF activation in PDAC, leading to TME fibrosis. Furthermore, ACLP-activated CAFs could promote cancer cell invasion in vitro and tumor metastasis in vivo. Mechanistically, ACLP promotes the expressions of MMP1 and MMP3 in CAFs, thus promoting PDAC invasion and metastasis. Intriguingly, we identified an ACLP-PPARγ-ACLP feedback loop in PDAC CAFs. Abatement of this feedback loop might be a promising approach in CAF-targeting PDAC treatment.
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Affiliation(s)
- Ya-Xiong Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Xiao-Xu Zhu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Xiao Wu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Jian-Hui Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Xu-Hao Ni
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Shi-Jin Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Wei Zhao
- Key Laboratory of Stem Cells and Tissue Engineering (Sun Yat-sen University), Ministry of Education, Guangzhou, 510080, China.
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China.
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20
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Zhu XX, Li JH, Ni X, Wu X, Hou X, Li YX, Li SJ, Zhao W, Yin XY. Pancreatic ductal adenocarcinoma cells regulated the gemcitabine-resistance function of CAFs by LINC00460. Cancer Sci 2022; 113:3735-3750. [PMID: 36047966 PMCID: PMC9633316 DOI: 10.1111/cas.15547] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 06/28/2022] [Accepted: 07/25/2022] [Indexed: 11/30/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a highly fatal malignancy with extremely poor prognosis. Gemcitabine resistance is a major challenge in the treatment of PDAC. Here, we showed that LINC00460 was associated with the response to gemcitabine both in PDAC patients and PDAC‐PDX. After knocking down LINC00460 in PDAC tumor cells, results of RNA sequencing followed by gene ontology analysis indicated that LINC00460 influenced the activity of growth factors and modified the extracellular matrix. FISH showed that LINC00460 is mostly located in the cytoplasm. Results of RNA pull‐down, LC–MS/MS, RIP, and immunoblotting confirmed that LINC00460 could directly bind to PDAP1. Furthermore, we demonstrated that LINC00460 mediated the cellular communication of PDAC tumor cells and CAFs by PDAP1/PDGFA/PDGFR signaling pathway and regulated the gemcitabine‐resistance function of CAFs, which could be reversed by treatment with a PDGFR inhibitor (crenolanib). PDAC‐PDX tumors with lower expression of LINC00460 showed a better response to gemcitabine plus crenolanib treatment. Our finding supported the application of LINC00460 in precision medicine that uses gemcitabine plus crenolanib to treat PDAC with low expression of LINC00460.
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Affiliation(s)
- Xiao-Xu Zhu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jian-Hui Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xuhao Ni
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xiao Wu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xun Hou
- Center for Gastrointestinal Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Ya-Xiong Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Shi-Jin Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Wei Zhao
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
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21
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Yin XY, Zhang YQ, Ma YY, He JY, Song H, Han ZG. Bifunctional Sensors Based on Phosphomolybdates for Detection of Inorganic Hexavalent Chromium and Organic Tetracycline. Inorg Chem 2022; 61:13174-13183. [PMID: 35944245 DOI: 10.1021/acs.inorgchem.2c02016] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Exploring effective sensors for detecting possible hazards in a water system are greatly significant. This work proposed a strategy for stable and effective bifunctional sensors via incorporating hourglass-type phosphomolybdates into metal-organic fragments to construct a high-dimensional framework. Two hourglass-type phosphomolybdate-based electrochemical sensors toward heavy metal ion Cr(VI) and tetracycline (TC) detection were designed with the formula [CoII2(H2O)4NaI2][CoII(Hbpe)][NaI(bpe)1.5]{CoII[PV4MoV6O31H6]2}·9H2O (1) and [CoII(H2O)4NaI3][CoII(Hbpe)][CoII(bpe)]{CoII[PV4MoV6O31H6]2}·9H2O (2) [bpe = 1,2-di(4-pyridyl)ethylene]. Structural analysis showed that hybrids 1 and 2 possess three-dimensional POM-supported network features with favorable stability and exhibit reversible redox properties. Experiments found that this kind of hybrids as efficient sensors have excellent electrochemical performance toward Cr(VI) detection with high sensitivities of 0.111 μA·μM-1 for 1 and 0.141 μA·μM-1 for 2, fast response time of 1 s, and low detection limits of 30 nM for 1 and 27 nM for 2, which far meet the standard of WHO for drinking water. Moreover, hybrids 1-2 also exhibit fast responses to TC detection with sensitivities of 0.0073 and 0.022 μA·mM-1 and detection limits of 0.426 and 0.084 mM. This work offers a novel strategy for the purposeful design of efficient POM-based electrochemical sensors for accurate determination of contaminants in a practical water system.
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Affiliation(s)
- Xiao-Yu Yin
- Hebei Key Laboratory of Organic Functional Molecules; National Demonstration Center for Experimental Chemistry Education; College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, Hebei, People's Republic of China
| | - Ya-Qi Zhang
- Hebei Key Laboratory of Organic Functional Molecules; National Demonstration Center for Experimental Chemistry Education; College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, Hebei, People's Republic of China
| | - Yuan-Yuan Ma
- Hebei Key Laboratory of Organic Functional Molecules; National Demonstration Center for Experimental Chemistry Education; College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, Hebei, People's Republic of China
| | - Jing-Yan He
- Hebei Key Laboratory of Organic Functional Molecules; National Demonstration Center for Experimental Chemistry Education; College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, Hebei, People's Republic of China
| | - Hao Song
- Hebei Key Laboratory of Organic Functional Molecules; National Demonstration Center for Experimental Chemistry Education; College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, Hebei, People's Republic of China
| | - Zhan-Gang Han
- Hebei Key Laboratory of Organic Functional Molecules; National Demonstration Center for Experimental Chemistry Education; College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, Hebei, People's Republic of China
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Ni X, Wu X, Zhu XX, Li JH, Yin XY, Lu L. Carabin Deficiency Aggravates Hepatic Ischemia-Reperfusion Injury Through Promoting Neutrophil Trafficking via Ras and Calcineurin Signaling. Front Immunol 2022; 13:773291. [PMID: 35265067 PMCID: PMC8898835 DOI: 10.3389/fimmu.2022.773291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 01/31/2022] [Indexed: 11/21/2022] Open
Abstract
Neutrophil infiltration plays an important role in the initial phase of hepatic ischemia and reperfusion injury (HIRI). Despite many different key molecules that have been reported to meditate neutrophil trafficking in HIRI, the mechanism of this process has not been fully elucidated. In this study, we found that Carabin deficiency in myeloid cells (LysMCre : Carabinfl/fl) aggravated IRI-induced hepatic injury and apoptosis through increasing the infiltration of CD11b+Ly6G+ neutrophils. ImmGen Datasets further revealed that Carabin was expressed in bone marrow neutrophils (GM.BM) but was significantly downregulated in thio-induced peripheral neutrophils (GN.Thio.PC), which was consistently verified by comparing GM.BM and liver-infiltrating neutrophils induced by IRI. Mechanistically, up-regulation of Carabin in GM.BM in vitro reduced the expression levels of P-selectin, E-selectin, and αvβ3 integrin through inhibiting Ras-ERK and Calcineurin-NFAT signaling. Furthermore, blocking P-selectin, E-selectin, and αvβ3 integrin in LysMCre : Carabinfl/fl mice decreased the frequency and number of CD11b+Ly6G+ neutrophils and reversed hepatic ischemia−reperfusion damage. In conclusion, our results provide a new understanding of Carabin, such that it is expressed and functions not only in adaptive immune cells (T and B cells) but also in innate immune cells (neutrophils), contributing to the migration of neutrophils. These findings provide novel and promising therapeutic targets for the prevention of HIRI during liver transplantation or hepatic surgery.
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Affiliation(s)
- Xuhao Ni
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiao Wu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiao-Xu Zhu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jian-Hui Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- *Correspondence: Xiao-Yu Yin, ; Ling Lu,
| | - Ling Lu
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- *Correspondence: Xiao-Yu Yin, ; Ling Lu,
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23
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Xu QC, Tien YC, Shi YH, Chen S, Zhu YQ, Huang XT, Huang CS, Zhao W, Yin XY. METTL3 promotes intrahepatic cholangiocarcinoma progression by regulating IFIT2 expression in an m6A-YTHDF2-dependent manner. Oncogene 2022; 41:1622-1633. [PMID: 35094011 PMCID: PMC8913368 DOI: 10.1038/s41388-022-02185-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 12/19/2021] [Accepted: 01/10/2022] [Indexed: 12/28/2022]
Abstract
AbstractN6-methyladenosine (m6A) RNA methylation has recently been found involving in regulatory mechanism of the tumor progression. Our aim was to explore the biological function and clinical significance of the m6A methyltransferase METTL3 in intrahepatic cholangiocarcinoma (ICC). In this study, we revealed that METTL3 was upregulated and predicted poor prognosis of patients with ICC. Multivariate regression analysis demonstrated that METTL3 expression was an independent predictor for overall survival in patients with ICC. Moreover, METTL3 knockdown inhibited ICC progression, while METTL3 overexpression showed the opposite effect. METTL3 inhibitor STM2457 also showed anti-tumor effect in ICC. Mechanistically, METTL3 transcription was driven by H3K4me3 activation. Upregulation of METTL3 mediated m6A modification of IFIT2 mRNA and accelerated IFIT2 mRNA decay in a YTHDF2-dependent manner, which promoted the development of ICC and lead to poorer prognosis. In summary, our findings revealed that H3K4me3 activation-driven METTL3 transcription promotes ICC progression by YTHDF2-mediated IFIT2 mRNA degradation, suggesting that METTL3 may serve as a potential target for human ICC therapy.
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Xu X, Liang JH, Li JH, Xu QC, Yin XY. Values of a novel pyroptosis-related genetic signature in predicting outcome and immune status of pancreatic ductal adenocarcinoma. Gastroenterol Rep (Oxf) 2022; 10:goac051. [PMID: 36196256 PMCID: PMC9522386 DOI: 10.1093/gastro/goac051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 05/18/2022] [Accepted: 08/14/2022] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Pyroptosis is an emerging form of programmed cell death associated with progression in malignancies. Yet, there are few studies reporting on the association between pancreatic ductal adenocarcinoma (PDAC) and pyroptosis. Therefore, we aimed to construct a pyroptosis-related genetic signature to predict the clinical outcome and immune status in PDAC patients.
Methods
RNA-seq data of 176 PDAC patients from The Cancer Genome Atlas (TCGA) and 167 PDAC patients from the Genotype-Tissue Expression Project were analysed for pyroptosis-related differentially expressed genes (DEGs) between PDAC and normal pancreas. The risk signature of DEGs was analysed using the least absolute shrinkage and selection operator (LASSO) Cox regression analysis and its accuracy was validated in the Gene Expression Omnibus (GEO) cohort (n = 190). Functional enrichment analyses were performed to explore the mechanisms of the DEGs. The immune characteristics were evaluated using single-sample gene set enrichment analysis and ESTIMATE algorithms for each group.
Results
A nine-gene risk signature was generated from LASSO Cox regression analysis and classified PDAC patients into either a high- or low-risk group according to the median risk score. The high-risk group had significantly shorter overall survival than the low-risk group and it was verified in the external GEO database. A nomogram based on the risk signature was constructed and showed an ideal prediction performance. Functional enrichment analyses revealed that pyroptosis might regulate the tumor immune microenvironment in PDAC. Immune infiltration evaluation suggested that immune status was more activated in the low-risk group than in the high-risk group.
Conclusion
The risk signature encompassing nine pyroptosis-related genes may be a prognostic marker for PDAC. Pyroptosis might affect the prognosis of PDAC patients via regulating the tumor immune microenvironment.
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Affiliation(s)
- Xiang Xu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University , Guangzhou, Guangdong, P. R. China
| | - Jia-Hua Liang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University , Guangzhou, Guangdong, P. R. China
| | - Jian-Hui Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University , Guangzhou, Guangdong, P. R. China
| | - Qiong-Cong Xu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University , Guangzhou, Guangdong, P. R. China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University , Guangzhou, Guangdong, P. R. China
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Ye CY, Xin JR, Li Z, Yin XY, Guo SL, Li JM, Zhao TY, Wang L, Yang L. ALDH2, ADCY3 and BCMO1 polymorphisms and lifestyle-induced traits are jointly associated with CAD risk in Chinese Han people. Gene 2022; 807:145948. [PMID: 34481002 DOI: 10.1016/j.gene.2021.145948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 08/29/2021] [Accepted: 08/30/2021] [Indexed: 11/04/2022]
Abstract
BACKGROUNDS To investigate associations of genetic and environmental factors with coronary artery disease (CAD), we collected medical reports, lifestyle details, and blood samples of 2113 individuals, and then used the polymerase chain reaction (PCR)-ligase detection reaction (LDR) to genotype the targeted 102 SNPs. METHODS We adopted elastic net algorithm to build an association model that considered simultaneously genetic and lifestyle/clinical factors associated with CAD in Chinese Han population. RESULTS In this study, we developed an all covariates-based model to explain the risk of CAD, which incorporated 8 lifestyle/clinical factors and a gene-score variable calculated from 3 significant SNPs (rs671, rs6751537 and rs11641677), attaining an area under the curve (AUC) value of 0.71. It was found that, in terms of genetic variants, the AA genotype of rs671 in the additive (adjusted odds ratio (OR) = 2.51, p = 0.008) and recessive (adjusted OR = 2.12, p = 0.021) models, the GG genotype of rs6751537 in the additive (adjusted OR = 3.36, p = 0.001) and recessive (adjusted OR = 3.47, p = 0.001) models were associated with increased risk of CAD, while GG genotype of rs11641677 in additive model (adjusted OR = 0.39, p = 0.044) was associated with decreased risk of CAD. In terms of lifestyle/clinical factors, the history of hypertension (unadjusted OR = 2.37, p < 0.001) and dyslipidemia (unadjusted OR = 1.82, p = 0.007), age (unadjusted OR = 1.07, p < 0.001) and waist circumference (unadjusted OR = 1.02, p = 0.05) would significantly increase the risk of CAD, while height (unadjusted OR = 0.97, p = 0.006) and regular intake of chicken (unadjusted OR = 0.78, p = 0.008) reduced the risk of CAD. A significantinteraction was foundbetween rs671 and dyslipidemia (the relative excess risk due to interaction (RERI) = 3.36, p = 0.05). CONCLUSION In this study, we constructed an association model and identified a set of SNPs and lifestyle/clinical risk factors of CAD in Chinese Han population. By considering both genetic and non-genetic risk factors, the built model may provide implications for CAD pathogenesis and clues for screening tool development in Chinese Han population.
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Affiliation(s)
- Cheng-Yin Ye
- School of Public Health, Hangzhou Normal University, Hangzhou 310000, China.
| | - Jia-Rui Xin
- School of Public Health, Hangzhou Normal University, Hangzhou 310000, China.
| | - Zheng Li
- Wu Yun Shan Hospital, Hangzhou 31000, China.
| | - Xiao-Yu Yin
- School of Public Health, Hangzhou Normal University, Hangzhou 310000, China.
| | - Shu-Li Guo
- School of Public Health, Hangzhou Normal University, Hangzhou 310000, China.
| | - Jin-Mei Li
- School of Public Health, Hangzhou Normal University, Hangzhou 310000, China.
| | - Tian-Yu Zhao
- School of Public Health, Hangzhou Normal University, Hangzhou 310000, China
| | - Li Wang
- School of Public Health, Hangzhou Normal University, Hangzhou 310000, China.
| | - Lei Yang
- School of Public Health, Hangzhou Normal University, Hangzhou 310000, China.
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Bi HX, Yin XY, Zhang XJ, Ma YY, Han ZG. Efficient visible-light-driven reduction of hexavalent chromium catalyzed by conjugated organic species modified hourglass-type phosphomolybdate hybrids. CrystEngComm 2022. [DOI: 10.1039/d1ce01467f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four conjugated-organic-species modified hourglass-type phosphomolybdate hybrids with a 0-D + 1-D → 3-D supramolecular structure exhibited favorable photocatalytic activity and stability towards Cr(vi) reduction.
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Affiliation(s)
- Hao-Xue Bi
- Hebei Key Laboratory of Organic Functional Molecules, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, Hebei 050024, People's Republic of China
| | - Xiao-Yu Yin
- Hebei Key Laboratory of Organic Functional Molecules, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, Hebei 050024, People's Republic of China
| | - Xiu-Juan Zhang
- Hebei Key Laboratory of Organic Functional Molecules, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, Hebei 050024, People's Republic of China
| | - Yuan-Yuan Ma
- Hebei Key Laboratory of Organic Functional Molecules, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, Hebei 050024, People's Republic of China
| | - Zhan-Gang Han
- Hebei Key Laboratory of Organic Functional Molecules, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, Hebei 050024, People's Republic of China
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Zhang XJ, Ma YY, Bi HX, Yin XY, Song H, Liu MH, Han ZG. Wheel-shaped molybdenum( v) cobalt-phosphate cluster as a highly sensitive bifunctional photoelectrochemical sensor for the trace determination of Cr( vi) and tetracycline. Inorg Chem Front 2022. [DOI: 10.1039/d2qi01936a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A wheel-shaped {Co16Mo16P24} cluster-based 3-D crystal framework serves as an efficient bifunctional photoelectrochemical sensor for the trace determination of Cr(vi) and tetracycline.
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Affiliation(s)
- Xiu-Juan Zhang
- Hebei Key laboratory of Organic Functional Molecules, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, Hebei 050024, P. R. China
| | - Yuan-Yuan Ma
- Hebei Key laboratory of Organic Functional Molecules, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, Hebei 050024, P. R. China
| | - Hao-Xue Bi
- Hebei Key laboratory of Organic Functional Molecules, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, Hebei 050024, P. R. China
| | - Xiao-Yu Yin
- Hebei Key laboratory of Organic Functional Molecules, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, Hebei 050024, P. R. China
| | - Hao Song
- Hebei Key laboratory of Organic Functional Molecules, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, Hebei 050024, P. R. China
| | - Man-Hui Liu
- Hebei Key laboratory of Organic Functional Molecules, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, Hebei 050024, P. R. China
| | - Zhan-Gang Han
- Hebei Key laboratory of Organic Functional Molecules, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, Hebei 050024, P. R. China
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Huang XT, Li JH, Zhu XX, Huang CS, Gao ZX, Xu QC, Zhao W, Yin XY. HNRNPC impedes m 6A-dependent anti-metastatic alternative splicing events in pancreatic ductal adenocarcinoma. Cancer Lett 2021; 518:196-206. [PMID: 34271104 DOI: 10.1016/j.canlet.2021.07.016] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 07/07/2021] [Accepted: 07/10/2021] [Indexed: 10/20/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a malignancy with poor prognosis due to early metastasis. The aberrant N6-methyladenosine (m6A) RNA modification has emerged as an important mechanism in cancer progression and metastasis, but its role in PDAC remained largely unknown. Here, we demonstrated that an m6A regulator, heterogeneous nuclear ribonucleoprotein C (HNRNPC), modulated alternative splicing events to promote PDAC metastasis. In clinical PDAC tissues, high expression of HNRNPC was correlated with metastasis, resulting in poor prognosis in PDAC patients. Knockdown of HNRNPC significantly reduced PDAC cell invasion in vitro and metastasis in vivo. In contrast, overexpression of HNRNPC provoked malignant phenotypes of PDAC cells. Mechanistically, HNRNPC antagonized the anti-metastatic isoform of TAF8 (TAF8L) but increased the pro-metastatic alternative splicing isoform of TAF8 (TAF8S). Mutation of the m6A-site of TAF8 attenuated the interaction between HNRNPC and TAF8 transcript, leading to the decrease of TAF8S. Furthermore, experimental manipulation of the anti-metastasis splicing isoform TAF8L revealed that splice isoform switching of TAF8 is crucial for PDAC metastasis. In conclusion, our findings demonstrate the essentiality of HNRNPC-mediated alternative splicing events that impinges on metastatic PDAC.
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Affiliation(s)
- Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Jian-Hui Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Xiao-Xu Zhu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Chen-Song Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Zhuo-Xing Gao
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Qiong-Cong Xu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Wei Zhao
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China.
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China.
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Huang CS, Xu QC, Dai C, Wang L, Tien YC, Li F, Su Q, Huang XT, Wu J, Zhao W, Yin XY. Nanomaterial-Facilitated Cyclin-Dependent Kinase 7 Inhibition Suppresses Gallbladder Cancer Progression via Targeting Transcriptional Addiction. ACS Nano 2021; 15:14744-14755. [PMID: 34405985 DOI: 10.1021/acsnano.1c04570] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Gallbladder cancer (GBC) is the most aggressive malignancy of the biliary tract cancer, and there is a lack of effective treatment. Here, we developed a nanoparticle platform (8P4 NP) that can deliver THZ1, a cyclin-dependent kinase 7 (CDK7) inhibitor, to treat GBC. Analysis of datasets demonstrated that CDK7 was positively correlated with poor prognosis. CDK7 inhibition suppressed cell proliferation, induced apoptosis, and caused cell cycle block in GBC cells. THZ1 downregulated CDK7-mediated phosphorylation of RNA polymerase II (RNAPII), resulting in a significant downregulation of transcriptional programs, with a preferential repression of oncogenic transcription factors. To improve the tumor targeting efficiency of THZ1, 8P4 NPs were prepared and assembled with THZ1 to form THZ1@8P4 NPs. Compared with free THZ1, THZ1@8P4 NPs showed more advantages in prolonging blood circulation, escaping from lysosomes and increasing cellular uptake. Importantly, THZ1@8P4 NPs demonstrated a more significant inhibition effect on GBC cells than free THZ1 in vitro. In addition, THZ1@8P4 NPs could efficiently deliver THZ1 to tumor sites in a patient-derived xenograft model of early recurrence, leading to tumor regression and transcriptional inhibition with minimal toxicity. In summary, we conclude that THZ1@8P4 NPs provide a potent therapeutic strategy that targets CDK7-mediated transcriptional addiction in GBC.
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Affiliation(s)
- Chen-Song Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Qiong-Cong Xu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Chunlei Dai
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Liying Wang
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Yi-Chih Tien
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Fuxi Li
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Qiao Su
- Department of Animal Experiment Center, First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Jun Wu
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Wei Zhao
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
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Huang XT, Cai JP, Chen W, Huang CS, Li JH, Gan TT, Liang LJ, Yin XY. Establishment and validation of a nomogram for predicting overall survival of node-negative perihilar cholangiocarcinoma. Asian J Surg 2021; 45:712-717. [PMID: 34384677 DOI: 10.1016/j.asjsur.2021.07.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 07/12/2021] [Accepted: 07/26/2021] [Indexed: 01/04/2023] Open
Abstract
AIM There lacks a predictive model for overall survival (OS) of node-negative perihilar cholangiocarcinoma (PHC). This study aimed at developing and validating a prognostic nomogram to predict OS of node-negative PHC after resection. METHODS We established a nomogram via multivariate regression analysis by using the design cohort (n = 410, obtained from Surveillance, Epidemiology, and End Results database), and its external verification was done in the validation cohort (n = 100, the First Affiliated Hospital of Sun Yat-sen University). Predictive accuracy of the nomogram was assessed by concordance-index (C-index), calibration curves, and decision curve analysis (DCA). Performance of the nomogram was compared with the American Joint Committee on Cancer (AJCC) staging system. RESULTS Multivariate regression analysis revealed that age, tumor grade, and the count of examined lymph nodes were independent prognostic factors for OS of node-negative PHC. The nomogram had a C-index of 0.603 and 0.626 in design cohort and validation cohort, respectively, which was better than that of AJCC staging system (both p < 0.05). The calibration curves showed good consistency between actual and nomogram-predicted OS probabilities. DCA showed that nomogram had better clinical usefulness. Furthermore, the nomogram-predicted scores could stratify the patients into three risk groups, and patients in higher risk group had worse prognosis than those in lower risk group (all p < 0.05). CONCLUSION The proposed nomogram had a better prognostic accuracy than the AJCC staging system in predicting postoperative OS of node-negative PHC. It was helpful to guide the adjuvant therapeutic strategies for node-negative PHC.
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Affiliation(s)
- Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Jian-Peng Cai
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Wei Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Chen-Song Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Jian-Hui Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Tian-Tian Gan
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Li-Jian Liang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China.
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Cai JP, Chen W, Chen LH, Wan XY, Lai JM, Yin XY. Comparison between robotic-assisted and laparoscopic left hemi-hepatectomy. Asian J Surg 2021; 45:265-268. [PMID: 34120821 DOI: 10.1016/j.asjsur.2021.05.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 04/26/2021] [Accepted: 05/17/2021] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVE To compare the safety and short-term outcomes between robotic-assisted and laparoscopic left hemi-hepatectomies in a single academic medical center. METHODS A cohort of 52 patients, who underwent robotic-assisted or laparoscopic left hemi-hepatectomies between April 2015 and January 2020 in Department of Pancreatobiliary Surgery, the First Affiliated Hospital of Sun Yat-Sen University was recruited into the study. Their clinicopathological features and short-term outcomes were analyzed retrospectively. RESULTS There were 25 robotic-assisted and 27 laparoscopic cases, with a median age of 55 years (34-77 years). There was one conversion to open in laparoscopic group. There were no significant differences in clinicopathological features between two groups, except robotic group had higher body mass index (23.9 vs. 22.0 kg/m2, p = 0.047). Robotic-assisted and laparoscopic groups had similar operative time (300 vs. 310 min, p = 0.515), length of hospital stay (8 vs. 8 days, p = 0.981) and complication rates (4.0% vs. 14.8%, p = 0.395), but the former had less blood loss (100 vs. 200 ml, p < 0.001) and lower incidence of blood transfusion (0% vs. 22.2%, p = 0.023) in comparison with laparoscopic group. R0 resection was achieved for all patients with malignancies. There was no perioperative mortality in both groups. The cost of robotic group was higher than laparoscopic group (105,870 vs. 64,191 RMB yuan, p = 0.02). CONCLUSION The robotic-assisted and laparoscopic approaches had similar safety and short-term outcomes in left hemi-hepatectomy, and the former can reduce operative blood loss and blood transfusion. However, the costs were higher in robotic group.
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Affiliation(s)
- Jian-Peng Cai
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Wei Chen
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Liu-Hua Chen
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xi-Yu Wan
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Jia-Ming Lai
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xiao-Yu Yin
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
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Huang XT, Huang CS, Li JH, Chen W, Gan TT, Wang XY, Liang LJ, Yin XY. Evaluating the adequacy of nodal status in node-negative gallbladder cancer with T1b-T2 stages: use of nodal staging score. HPB (Oxford) 2021; 23:795-801. [PMID: 33051141 DOI: 10.1016/j.hpb.2020.09.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 08/06/2020] [Accepted: 09/21/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND The study aimed at establishing a nodal staging score (NSS) to quantify the likelihood that pathologic node-negative gallbladder cancer (GBC) patients are indeed free of lymph node (LN) metastasis. METHODS Clinicopathological data of 1374 GBC patients with T1b-T2 stages were collected from the Surveillance, Epidemiology and End Result database (design cohort [DC], n = 1289) and the First Affiliated Hospital of Sun Yat-sen University (validation cohort [VC], n = 85). NSS was derived from the count of examined LNs (ELNs) and T stage by using a beta-binomial model, and represented the probability that a node-negative patient is correctly staged. The prognostic value of NSS in node-negative GBC was evaluated by survival analysis. RESULTS The probability of missing a nodal disease in node-negative GBC patients with T1b-T2 stages (pT1bN0 and pT2N0) decreased as the number of ELNs increased. NSS increased as the number of ELNs increased. For pT1bN0 and pT2N0 patients, examination of 5 and 27 lymph nodes could ensure an NSS of 90.0%, respectively. Multivariate analysis revealed that NSS was an independent predictor for overall survival in pT1bN0 and pT2N0 GBC patients (DC, HR:0.53, 95%CI: 0.42-0.66, p < 0.001; VC, HR: 0.33, 95%CI: 0.14-0.76, p = 0.009). CONCLUSION NSS could evaluate the adequacy of nodal staging and predict the prognosis in pT1bN0 and pT2N0 GBC patients, and hence was helpful to guide their treatment strategies.
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Affiliation(s)
- Xi-Tai Huang
- The Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Chen-Song Huang
- The Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Jian-Hui Li
- The Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Wei Chen
- The Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Tian-Tian Gan
- The Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Xi-Yu Wang
- The Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Li-Jian Liang
- The Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China
| | - Xiao-Yu Yin
- The Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, PR China.
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Liu J, Shi S, Yin X, Jin Y, Lu C, Zhang Q, Yang J, Liao J, Yang Y, Liu C, Liu N. Evaluation of U(VI) adsorption from Ca2+ coexisted bicarbonate solution by synthetic inorganic and mineral materials. RADIOCHIM ACTA 2020. [DOI: 10.1515/ract-2020-0074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Part weakly alkaline natural uranium-containing water contains abundant Ca2+ and (bi)carbonate. Herein, two kinds of materials, namely mesoporous hydrous manganese dioxide (MHMO) and polyacrylonitrile (PAN)/dolomite composites were synthesized and characterized to evaluate their adsorption behaviors of U(VI) from Ca2+ coexisted bicarbonate solution. Characterization results showed that both samples exhibited good structural stability after U(VI) load. MHMO could coordinate U(VI) through the surface –OH sites, whereas an unfavorable U(VI) adsorption onto mineral composites was deduced. Adsorption tests indicated that increasing Ca2+ and (bi)carbonate amounts suppress U(VI) adsorption process, and ∼19.0 mg/g U adsorbed by MHMO could be obtained in solutions with 1 mmol/L [Ca2+], 5 mmol/L [CO3]T, 50 mg/L [U(VI)]initial at pH 8.0. Moreover, a heterogeneous surface chemical adsorption was verified through kinetics and isotherms study. Results from our study should be useful in exploring the adsorption behaviors and mechanisms of U(VI) on selected inorganic and mineral materials from natural uranium-containing water.
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Affiliation(s)
- Jun Liu
- College of Nuclear Technology and Automation Engineering , Chengdu University of Technology , Chengdu , 610059, PR China
- Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology , Sichuan University , Chengdu , 610064, PR China
| | - Shilong Shi
- College of Nuclear Technology and Automation Engineering , Chengdu University of Technology , Chengdu , 610059, PR China
| | - XiaoYu Yin
- College of Nuclear Technology and Automation Engineering , Chengdu University of Technology , Chengdu , 610059, PR China
| | - Yong Jin
- College of Nuclear Technology and Automation Engineering , Chengdu University of Technology , Chengdu , 610059, PR China
| | - Chunhai Lu
- College of Nuclear Technology and Automation Engineering , Chengdu University of Technology , Chengdu , 610059, PR China
| | - Qingxian Zhang
- College of Nuclear Technology and Automation Engineering , Chengdu University of Technology , Chengdu , 610059, PR China
| | - Jijun Yang
- Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology , Sichuan University , Chengdu , 610064, PR China
| | - Jiali Liao
- Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology , Sichuan University , Chengdu , 610064, PR China
| | - Yuanyou Yang
- Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology , Sichuan University , Chengdu , 610064, PR China
| | - Chunhai Liu
- College of Materials and Chemistry and Chemical Engineering , Chengdu University of Technology , Chengdu , PR China
| | - Ning Liu
- Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology , Sichuan University , Chengdu , 610064, PR China
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Wang XY, Cai JP, Huang CS, Huang XT, Yin XY. Impact of enhanced recovery after surgery protocol on pancreaticoduodenectomy: a meta-analysis of non-randomized and randomized controlled trials. HPB (Oxford) 2020; 22:1373-1383. [PMID: 32811766 DOI: 10.1016/j.hpb.2020.07.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 05/31/2020] [Accepted: 07/13/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Enhanced recovery after surgery (ERAS) has been widely applied in many surgical specialties. However, with respect to the impact of ERAS on pancreaticoduodenectomy (PD), there still exist some controversies. METHODS Literature search was performed in PubMed, Web of Science and the Cochrane Library from January, 1990 to July, 2019. A meta-analysis was performed using fixed-effects or random-effects models. RESULTS Twenty-two studies containing 4147 patients were identified. The entire pooled data showed that ERAS significantly reduced overall and minor morbidity (RR: 0.80, 95% CI: 0.72-0.88, p < 0.001; RR: 0.78, 95% CI: 0.69-0.88, p < 0.001, respectively), but didn't affect major morbidity (RR: 0.97, 95% CI: 0.84-1.13, p = 0.72). ERAS markedly reduced the incidences of delayed gastric emptying (DGE) (RR: 0.69, 95% CI: 0.55-0.88, p = 0.002), incisional infection (RR: 0.75, 95% CI: 0.60-0.94, p = 0.01) and intra-abdominal infection (RR: 0.79, 95% CI: 0.63-1.00, p = 0.05), but didn't influence clinically-relevant postoperative pancreatic fistula (CR-POPF) (RR: 0.86, 95% CI: 0.73-1.01, p = 0.07). Shorter length of stay (LOS) (WMD: -5.07, 95% CI: -6.71 to -3.43, p < 0.001) was noted in ERAS group, without increasing 30-day readmission (RR: 1.03, 95% CI: 0.86-1.24, p = 0.71) and mortality (RR: 0.70, 95% CI: 0.41-1.21, p = 0.20). CONCLUSION ERAS significantly reduced overall and minor morbidity, incidences of DGE, incisional and intra-abdominal infections, and shortened LOS in PD, without increasing 30-day readmission and mortality. However, more large-scale randomized controlled trials are still needed to confirm the findings.
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Affiliation(s)
- Xi-Yu Wang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jian-Peng Cai
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chen-Song Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
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Huang XT, Huang CS, Liu C, Chen W, Cai JP, Cheng H, Jiang XX, Liang LJ, Yu XJ, Yin XY. Development and Validation of a New Nomogram for Predicting Clinically Relevant Postoperative Pancreatic Fistula After Pancreatoduodenectomy. World J Surg 2020; 45:261-269. [PMID: 32901325 DOI: 10.1007/s00268-020-05773-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/23/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND There lacks an ideal model for accurately predicting clinically relevant postoperative pancreatic fistula (CR-POPF) after pancreatoduodenectomy (PD). This study aimed at developing a nomogram with high accuracy in predicting CR-POPF after PD. METHODS A total of 1182 patients undergoing PD in the First Affiliated Hospital of Sun Yat-sen University (FAHSYSU, n = 762) and Fudan University Shanghai Cancer Center (FUSCC, n = 420) between January 2010 and May 2018 were enrolled. The patients from FAHSYSU were assigned as testing cohort, and those from FUSCC were used as external validation cohort. Univariate and multivariate logistic regression analyses were performed to determine the predictive factors for CR-POPF. Nomogram was developed on the basis of significant predictors. The performance of nomogram was evaluated by area under receiver operating characteristic (ROC) curve (AUC), calibration curve, and decision curve analysis. RESULTS In testing cohort, 87 out of 762 patients developed CR-POPF. Three predictors were significantly associated with CR-POPF, including body mass index ≥24.0 kg/m2, pancreatic duct diameter <3 mm, and drainage fluid amylase on postoperative day 1 ≥2484 units/L (all p ≤ 0.001). Prediction of nomogram was accurate with AUC of 0.934 (95% confidence interval [CI]: 0.914-0.950) in testing cohort and 0.744 (95% CI: 0.699-0.785) in external validation cohort. The predictive accuracy of nomogram was better than that of previously proposed fistula risk scores both in testing and external validation cohort (all p < 0.05). CONCLUSIONS The novel nomogram based on three easily available parameters could accurately predict CR-POPF after PD. It would have high clinical value due to its accuracy and convenience.
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Affiliation(s)
- Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Chen-Song Huang
- Department of Pancreato-Biliary Surgery, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Chen Liu
- Department of Pancreatic Surgery, Shanghai Cancer Center, Fudan University, 270 DongAn Road, Xuhui, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Pancreatic Cancer Institute, Shanghai, China
| | - Wei Chen
- Department of Pancreato-Biliary Surgery, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Jian-Peng Cai
- Department of Pancreato-Biliary Surgery, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - He Cheng
- Department of Pancreatic Surgery, Shanghai Cancer Center, Fudan University, 270 DongAn Road, Xuhui, Shanghai, 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Pancreatic Cancer Institute, Shanghai, China
| | - Xing-Xing Jiang
- Department of Hepatobiliary Surgery, The Affiliated Xinyu Hospital, Nanchang University, Xinyu, 338025, China
| | - Li-Jian Liang
- Department of Pancreato-Biliary Surgery, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Xian-Jun Yu
- Department of Pancreatic Surgery, Shanghai Cancer Center, Fudan University, 270 DongAn Road, Xuhui, Shanghai, 200032, China. .,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China. .,Shanghai Pancreatic Cancer Institute, Shanghai, China.
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China.
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Wang JQ, Wang LY, Li SJ, Tong T, Wang L, Huang CS, Xu QC, Huang XT, Li JH, Wu J, Zhao W, Yin XY. Histone methyltransferase G9a inhibitor-loaded redox-responsive nanoparticles for pancreatic ductal adenocarcinoma therapy. Nanoscale 2020; 12:15767-15774. [PMID: 32729861 DOI: 10.1039/d0nr03138k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Survival data have shown little therapeutic improvement in pancreatic ductal adenocarcinoma (PDAC) over the past several decades, mostly due to aggressive growth and resistance to therapy. Glutathione (GSH) depletion in PDAC may serve as a strategy to suppress tumour malignancy and sensitize tumour cells to therapy. Herein, novel l-cysteine-based poly(disulfide amide) polymers were fabricated to deliver a histone methyltransferase G9a inhibitor (UNC0638) that can simultaneously block GSH biosynthesis and clear cellular GSH levels in PDAC. The optimal UNC0638 nanodrug (NPUNC0638) had the desired particle size, reasonable drug loading capacity, and GSH-controlled drug release. Moreover, compared to UNC0638 alone, NPUNC0638 showed better efficacy in inhibiting cell viability, arresting the cell cycle, inducing apoptosis, and suppressing the invasion and self-renewal capacity of PDAC cells. Furthermore, NPUNC0638 was found to be tumour-specific and well tolerated with no apparent toxicity to vital organs and haematopoietic stem and progenitor cells. Additionally, treatment with NPUNC0638 provided favourable outcomes in the PDAC xenograft model. Therefore, this work presents a potent drug delivery platform to overcome the GSH-induced malignant potential of PDAC.
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Affiliation(s)
- Jie-Qin Wang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China.
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Jiang XX, Huang XT, Huang CS, Chen LH, Liang LJ, Yin XY. Long-term outcome and prognostic factors of combined hepatocellular carcinoma and cholangiocarcinoma after curative resection. Gastroenterol Rep (Oxf) 2020; 8:134-142. [PMID: 32280473 PMCID: PMC7136721 DOI: 10.1093/gastro/goaa003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 01/09/2020] [Accepted: 01/13/2020] [Indexed: 02/06/2023] Open
Abstract
Background Combined hepatocellular carcinoma and cholangiocarcinoma (cHCC-CC) is a rare subtype of primary liver cancers. Its prognostic factors remain unclear. The study aimed to evaluate its long-term outcome and prognostic factors by retrospectively reviewing the series of cHCC-CC after curative resection from our institute. Methods A total of 55 pathologically confirmed cHCC-CC patients undergoing curative resections between January 2003 and January 2018 at the First Affiliated Hospital of Sun Yat-sen University (Guangzhou, China) were included. The clinicopathological and follow-up data were retrieved. Overall survival (OS) and recurrence-free survivals (RFS) were analysed by Kaplan–Meier curve. The independent prognostic factors were determined by using univariate and multivariate Cox analyses. Results There were 41 males and 14 females, with a median age of 51.0 (interquartile range, 44.0–60.0) years. The 1-, 3-, and 5-year OS and RFS rates in cHCC-CC were 80.0%, 25.5%, and 16.4%, respectively, and 52.7%, 21.8%, and 10.9%, respectively. The median OS and RFS were 24.9 and 14.5 months, respectively. Univariate and multivariate analyses revealed that elevated alpha-fetal protein (AFP) and/or CA19-9, vascular invasion, local extra-hepatic invasion, and lymph-node metastasis (LNM) were independent unfavorable prognostic factors for OS and RFS (all P < 0.005). Furthermore, elevated AFP and/or CA19-9 were independent unfavorable prognostic factors in various subgroups of cHCC-CC, including patients aged <60 years, positive hepatitis B surface antigen, cirrhosis, single tumor, tumor size ≥5 cm, no vascular invasion, no LNM, and no local extra-hepatic invasion (all P < 0.05). Conclusions Elevated AFP and/or CA19-9, vascular invasion, local extra-hepatic invasion, and LNM were independent unfavorable prognostic factors for long-term survival of cHCC-CC undergoing curative resections. Patients with normal levels of AFP and CA19-9 had better prognosis.
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Affiliation(s)
- Xing-Xing Jiang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P. R. China.,Department of Hepatobiliary Surgery, The Affiliated Xinyu Hospital, Nanchang University, Xinyu, Jiangxi, P. R. China
| | - Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Chen-Song Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Liu-Hua Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Li-Jian Liang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
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Chen HD, Huang CS, Xu QC, Li F, Huang XT, Wang JQ, Li SJ, Zhao W, Yin XY. Therapeutic Targeting of CDK7 Suppresses Tumor Progression in Intrahepatic Cholangiocarcinoma. Int J Biol Sci 2020; 16:1207-1217. [PMID: 32174795 PMCID: PMC7053328 DOI: 10.7150/ijbs.39779] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 12/22/2019] [Indexed: 12/25/2022] Open
Abstract
Intrahepatic cholangiocarcinoma (ICC) is a lethal malignancy with high mortality and lack of effective therapeutic targets. Here, we found that expression of cyclin-dependent kinase 7 (CDK7) was significantly associated with higher tumor grade and worse prognosis in 96 ICC specimens. Depletion of CDK7 significantly inhibited cell growth, induced a G2/M cell cycle arrest, and reduced the migratory and invasive potential in ICC cells. Subsequent experiments demonstrated that ICC cells were highly sensitive to the CDK7 inhibitor THZ1. A low concentration of THZ1 markedly inhibited cell growth, cell cycle, migration, and invasion in ICC cell lines. RNA-sequencing (RNA-seq) analysis revealed that THZ1 treatment decreased the levels of massive oncogene transcripts, particularly those associated with cell cycle and cell migration. Quantitative reverse transcriptase PCR (qRT-PCR) analysis confirmed that transcription of oncogenes involved in cell cycle regulation (AURKA, AURKB, CDC25B, CDK1, CCNA2, and MKI67) and the c-Met pathway (c-Met, AKT1, PTK2, CRK, PDPK1, and ARF6) was selectively repressed by THZ1. In addition, THZ1 exhibited significant anti-tumor activity in a patient-derived xenograft (PDX) model of ICC, without causing detectable side effects.
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Affiliation(s)
- Hua-Dong Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China.,Department of Pediatric Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Chen-Song Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Qiong-Cong Xu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Fuxi Li
- RNA Biomedical Institute, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China.,Key Laboratory of Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangzhou 510080, China
| | - Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Jie-Qin Wang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Shi-Jin Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Wei Zhao
- RNA Biomedical Institute, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China.,Key Laboratory of Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangzhou 510080, China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
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Yin XY, Hu H, Liu XJ. Few-Body Perspective of a Quantum Anomaly in Two-Dimensional Fermi Gases. Phys Rev Lett 2020; 124:013401. [PMID: 31976732 DOI: 10.1103/physrevlett.124.013401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 11/10/2019] [Indexed: 06/10/2023]
Abstract
A quantum anomaly manifests itself in the deviation of the breathing mode frequency from the scale invariant value of 2ω in two-dimensional harmonically trapped Fermi gases, where ω is the trapping frequency. Its recent experimental observation with cold atoms reveals an unexpected role played by the effective range of interactions, which requires a quantitative theoretical understanding. Here we provide accurate, benchmark results on a quantum anomaly from a few-body perspective. We consider the breathing mode of a few trapped interacting fermions in two dimensions up to six particles and present the mode frequency as a function of scattering length for a wide range of effective range. We show that the maximum quantum anomaly gradually reduces as the effective range increases while the maximum position shifts towards the weak-coupling limit. We extrapolate our few-body results to the many-body limit and find a good agreement with the experimental measurements. Our results may also be directly applicable to a few-fermion system prepared in microtraps and optical tweezers.
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Affiliation(s)
- X Y Yin
- Centre for Quantum and Optical Science, Swinburne University of Technology, Melbourne, Victoria 3122, Australia
| | - Hui Hu
- Centre for Quantum and Optical Science, Swinburne University of Technology, Melbourne, Victoria 3122, Australia
| | - Xia-Ji Liu
- Centre for Quantum and Optical Science, Swinburne University of Technology, Melbourne, Victoria 3122, Australia
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Huang XT, Huang CS, Chen W, Cai JP, Gan TT, Zhao Y, Liu Q, Liang LJ, Yin XY. Development and validation of a nomogram for predicting overall survival of node-negative ampullary carcinoma. J Surg Oncol 2019; 121:518-523. [PMID: 31879976 DOI: 10.1002/jso.25816] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 12/09/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND The accuracy of the current staging system for predicting the overall survival (OS) of patients with ampullary carcinoma (AC) is still unsatisfactory, especially in node-negative (N0) patients. We aimed at establishing a nomogram to accurately predict OS in N0 AC. METHODS This study enrolled 697 N0 AC patients from the Surveillance, Epidemiology, and End Results database (design cohort [DC], n = 697) and the First Affiliated Hospital of Sun Yat-sen University (validation cohort [VC], n = 112), who underwent surgical resection. The nomogram was established by using prognostic factors determined by univariate and multivariate regression analyses. RESULTS The nomogram for OS was developed by using four independent prognostic factors, including age, grade, T stage, and a number of examined lymph nodes. The C-index of a nomogram for OS in DC and VC was 0.665 and 0.731, respectively. Calibration curves showed good consistency of the nomogram. The nomogram had a better accuracy in predicting OS compared with conventional staging system (P < .05). On the basis of nomogram-predicted scores, the patients were stratified into groups with different risk. The OS of low-risk patients was significantly longer than high-risk ones (P ≤ .010). CONCLUSIONS The nomogram could be used to predict the OS of N0 AC. It could help guide further treatment in clinical practice.
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Affiliation(s)
- Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chen-Song Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wei Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jian-Peng Cai
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Tian-Tian Gan
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ying Zhao
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qi Liu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Li-Jian Liang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Li JH, Zhu XX, Li FX, Huang CS, Huang XT, Wang JQ, Gao ZX, Li SJ, Xu QC, Zhao W, Yin XY. MFAP5 facilitates the aggressiveness of intrahepatic Cholangiocarcinoma by activating the Notch1 signaling pathway. J Exp Clin Cancer Res 2019; 38:476. [PMID: 31775892 PMCID: PMC6882185 DOI: 10.1186/s13046-019-1477-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 11/11/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND Intrahepatic cholangiocarcinoma (ICC) is the second most common primary liver cancer. The dismal outcome of ICC patients is due to lack of early diagnosis, the aggressive biological behavior of ICC and the lack of effective therapeutic options. Early diagnosis and prognosis of ICC by non-invasive methods would be helpful in providing valuable information and developing effective treatment strategies. METHODS Expression of microfibrillar-associated protein 5 (MFAP5) in the serum of ICC patients was detected by ELISA. Human ICC specimens were immunostained by MFAP5 antibodies. The growth rate of human ICC cell lines treated with MFAP5 or MFAP5 shRNAs was examined by CCK8 and colony formation assays. Cell cycle analysis was performed with PI staining. The effect of MFAP5 inhibition was assessed by xenograft models in nude mice. RNA-seq and ATAC-seq analyses were used to dissect the molecular mechanism by which MFAP5 promoted ICC aggressiveness. RESULTS We identified MFAP5 as a biomarker for the diagnosis and prognosis of ICC. Upregulated MFAP5 is a common feature in aggressive ICC patients' tissues. Importantly, MFAP5 level in the serum of ICC patients and healthy individuals showed significant differential expression profiles. Furthermore, we showed that MFAP5 promoted ICC cell growth and G1 to S-phase transition. Using RNA-seq expression and ATAC-seq chromatin accessibility profiling of ICC cells with suppressed MFAP5 secretion, we showed that MFAP5 regulated the expression of genes involved in the Notch1 signaling pathway. Furthermore, FLI-06, a Notch signaling inhibitor, completely abolished the MFAP5-dependent transcriptional programs. CONCLUSIONS Raised MFAP5 serum level is useful for differentiating ICC patients from healthy individuals, and could be helpful in ICC diagnosis, prognosis and therapies.
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Affiliation(s)
- Jian-Hui Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Xiao-Xu Zhu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Fu-Xi Li
- Key Laboratory of Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangzhou, 510080, China
| | - Chen-Song Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Jie-Qin Wang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Zhuo-Xing Gao
- Key Laboratory of Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangzhou, 510080, China
| | - Shi-Jin Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Qiong-Cong Xu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Wei Zhao
- Key Laboratory of Stem Cells and Tissue Engineering (Sun Yat-Sen University), Ministry of Education, Guangzhou, 510080, China.
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China.
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Zhu XX, Li JH, Cai JP, Hou X, Huang CS, Huang XT, Wang JQ, Li SJ, Xu QC, Yin XY. EYA4 inhibits hepatocellular carcinoma by repressing MYCBP by dephosphorylating β-catenin at Ser552. Cancer Sci 2019; 110:3110-3121. [PMID: 31385398 PMCID: PMC6778622 DOI: 10.1111/cas.14159] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 07/16/2019] [Accepted: 07/31/2019] [Indexed: 02/06/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most common malignancies and the fourth leading cause of cancer-related death worldwide. Our previous study showed that EYA4 functioned by suppressing growth of HCC tumor cells, but its molecular mechanism is still not elucidated. Based on the results of gene microassay, EYA4 was inversely correlated with MYCBP and was verified in human HCC tissues by immunohistochemistry and western blot. Overexpressed and KO EYA4 in human HCC cell lines confirmed the negative correlation between EYA4 and MYCBP by qRT-PCR and western blot. Transfected siRNA of MYCBP in EYA4 overexpressed cells and overexpressed MYCBP in EYA4 KO cells could efficiently rescue the proliferation and G2/M arrest effects of EYA4 on HCC cells. Mechanistically, armed with serine/threonine-specific protein phosphatase activity, EYA4 reduced nuclear translocation of β-catenin by dephosphorylating β-catenin at Ser552, thereby suppressing the transcription of MYCBP which was induced by β-catenin/LEF1 binding to the promoter of MYCBP. Clinically, HCC patients with highly expressed EYA4 and poorly expressed MYCBP had significantly longer disease-free survival and overall survival than HCC patients with poorly expressed EYA4 and highly expressed MYCBP. In conclusion, EYA4 suppressed HCC tumor cell growth by repressing MYCBP by dephosphorylating β-catenin S552. EYA4 combined with MYCBP could be potential prognostic biomarkers in HCC.
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Affiliation(s)
- Xiao-Xu Zhu
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jian-Hui Li
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jian-Peng Cai
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xun Hou
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Chen-Song Huang
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xi-Tai Huang
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jie-Qin Wang
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shi-Jin Li
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Qiong-Cong Xu
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiao-Yu Yin
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Yin XY, Hu H, Liu XJ. Cluster Formation in Two-Component Fermi Gases. Phys Rev Lett 2019; 123:073401. [PMID: 31491116 DOI: 10.1103/physrevlett.123.073401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 05/29/2019] [Indexed: 06/10/2023]
Abstract
Two-component fermions are known to behave like a gas of molecules in the limit of Bose-Einstein condensation of diatomic pairs tightly bound with zero-range interactions. We discover that the formation of cluster states occurs when the effective range of two-body interaction exceeds roughly 0.46 times the scattering length, regardless of the details of the short-range interaction. Using an explicitly correlated Gaussian basis set expansion approach, we calculate the binding energy of cluster states in trapped few-body systems and show the difference of structural properties between cluster states and gaslike states. We identify the condition for cluster formation and discuss the potential observation of cluster states in experiments.
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Affiliation(s)
- X Y Yin
- Centre for Quantum and Optical Science, Swinburne University of Technology, Melbourne, Victoria 3122, Australia
| | - Hui Hu
- Centre for Quantum and Optical Science, Swinburne University of Technology, Melbourne, Victoria 3122, Australia
| | - Xia-Ji Liu
- Centre for Quantum and Optical Science, Swinburne University of Technology, Melbourne, Victoria 3122, Australia
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Huang XT, Huang CS, Li JH, Cai JP, Chen W, Yin XY. Prognostic significance of neutrophil/prealbumin ratio for intrahepatic cholangiocarcinoma undergoing curative resection. HPB (Oxford) 2018; 20:1215-1222. [PMID: 30078755 DOI: 10.1016/j.hpb.2018.06.1810] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 05/26/2018] [Accepted: 06/24/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND This study aimed to clarify the prognostic significance of neutrophil/prealbumin ratio index (NPRI) for overall survival (OS) and recurrence free survival (RFS) of ICC after curative surgery. METHODS Two-hundred and seventy-six ICC patients who underwent curative resection from December 2006 to April 2017 were recruited and analyzed retrospectively. The correlations between clinicopathological features and NPRI were analyzed. OS and RFS were calculated using Kaplan-Meier curve, and cox univariate and multivariate analyses were used to identify the prognostic factors. RESULTS The optimal cut-off value of NPRI determined by ROC curve was 1.74 and the patients were divided into high-value and low-value groups. High-value NPRI was associated with higher risk of postoperative complications (p = 0.035) and longer hospitalization (p = 0.004).Univariate and multivariate cox analyses demonstrated that NPRI was an independent predictor for OS (p = 0.015) and RFS (p = 0.004) in ICC after curative resection. Furthermore, NPRI was also a significant predictor for OS and RFS in different subgroups of ICC, including CA19-9<35U/mL, single tumor, no vascular invasion, no local invasion and AJCC stages I + II. CONCLUSIONS NPRI was an independent prognostic predictor for ICC after curative resection. It would have high clinical values due to its convenience.
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Affiliation(s)
- Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Chen-Song Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Jian-Hui Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Jian-Peng Cai
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Wei Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China.
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Huang XT, Chen LH, Huang CS, Li JH, Cai JP, Chen W, Yin XY. Establishment of a Nomogram by Integrating Molecular Markers and Tumor-Node-Metastasis Staging System for Predicting the Prognosis of Hepatocellular Carcinoma. Dig Surg 2018; 36:426-432. [PMID: 30481744 DOI: 10.1159/000494219] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 09/21/2018] [Indexed: 12/10/2022]
Abstract
AIMS This study aimed to develop a valuable nomogram by integrating molecular markers and tumor-node-metastasis (TNM) staging system for predicting the long-term outcome of patients with hepatocellular carcinoma (HCC). METHODS The gene expression profiles of HCC patients undergoing liver resection were obtained from the Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) database. One hundred and ninety-nine patients from TCGA and 94 patients from GEO were selected to be part of the training cohort and validation cohort respectively. Univariate and multivariate cox analyses were performed to identify genes with independent prognostic values for overall survival (OS) of HCC patients in training cohort. Risk score was calculated based on the coefficients and Z-score of 3 genes for each patient. The nomogram was developed based on the risk score and TNM staging system. Discrimination and predictive accuracy of the nomogram were measured by using the concordance index (C-index) and calibration curve. The efficacy of the nomogram was tested in the external validation cohort. RESULTS Univariate and multivariate cox analyses revealed that EXT2 (p = 0.035, hazard ratio 13.412), ETV5 (p = 0.010, hazard ratio 4.325), and CHODL (p < 0.001, hazard ratio 6.286) were independent prognostic factors and chosen for further nomogram establishment. The C-index of the nomogram for predicting the OS in the training cohort was superior to that of the TNM staging system (0.77 vs. 0.64, p < 0.01). The calibration curve of predicted 1-, 3-, and 5-year OS showed satisfactory accuracy. The external validation cohort showed good performance of comprehensive nomogram as well. CONCLUSION The novel nomogram by integrating the molecular markers and TNM staging system has better performance in predicting long-term prognosis in HCC patients than the TNM staging system alone.
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Affiliation(s)
- Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Liu-Hua Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Chen-Song Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Jian-Hui Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Jian-Peng Cai
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Wei Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China,
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Wang D, Yue DL, Wang D, Chen XF, Yin XY, Wang YP, Yang L, Zhang Y. [Aspirin inhibits cell stemness of esophageal cancer by downregulation of chemokine CCL2]. Zhonghua Zhong Liu Za Zhi 2018; 40:744-749. [PMID: 30392338 DOI: 10.3760/cma.j.issn.0253-3766.2018.10.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of tumor-associated macrophages on the stemness of esophageal cancer cells and the potential mechanism of antiproliferative effects of aspirin (ASA). Methods: The effects of aspirin on the stemness characteristics of KYSE-450 cells and KYSE-450 cells co-cultured with M2 macrophages (KYSE-450+ M2) were performed using spheroid formation assay. After treatment with aspirin, the expression of different chemokines, the core pluripotency gene Nanog and the stem cell marker CD90 in different cell groups were determined by real-time quantitative PCR, flow cytometry and Western blot. Results: The number of spheres formed in the ASA and KYSE-450+ M2 cell groups were 7.00±1.23 and 34.33±2.33, respectively, showing statistically significant difference compared with that of control group (14.50±2.33, all P<0.05). The number of spheres in KYSE-450+ M2+ ASA cell group were 20.67±2.33, which was significantly lower than that of KYSE-450+ M2 group (P<0.05). The expression levels of Nanog gene in control and ASA groups were 1.00 and 0.50±0.10, respectively, and the difference was statistically significant (P<0.05). Moreover, the expression of Nanog gene in cells of KYSE-450+ M2 group and M2+ KYSE-450+ ASA group was 1.74±0.13 and 1.43±0.05, showing statistically significant difference (P<0.05). When chemokine CCL2 was knocked down, the levels of Nanog gene in M2+ shCCL2-KYSE450+ ASA group and M2+ shCCL2-KYSE450 group were decreased to 1.22±0.11 and 1.17±0.08, respectively, and there was no statistically significant difference between them (P=0.69). Flow cytometry analyses showed that the expression levels of CD90 in control and ASA cells were (2.93±0.52)% and (1.30±0.17)%, respectively, and the difference was statistically significant (P<0.05). Moreover, the expression levels of CD90 in M2+ shCCL2-KYSE450 cells and M2+ shCCL2-KYSE450+ ASA cells were (4.07±0.12)% and (4.73±0.38)%, respectively, showing no statistically significant difference (P=0.17). Conclusions: Tumor-associated macrophages enhances the stemness of esophageal cancer cells, whereas aspirin attenuates the stemness by suppressing the expression of CCL2. Aspirin plays an anti-tumor effect in esophageal cancer cells.
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Affiliation(s)
- D Wang
- Biotherapy Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - D L Yue
- Department of Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - D Wang
- Biotherapy Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - X F Chen
- Biotherapy Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - X Y Yin
- Department of Clinical Medicine, Zhengzhou University, Zhengzhou 450052, China
| | - Y P Wang
- Department of Clinical Medicine, Zhengzhou University, Zhengzhou 450052, China
| | - L Yang
- Biotherapy Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y Zhang
- Biotherapy Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Huang CS, Chu J, Zhu XX, Li JH, Huang XT, Cai JP, Zhao W, Yin XY. The C/EBPβ-LINC01133 axis promotes cell proliferation in pancreatic ductal adenocarcinoma through upregulation of CCNG1. Cancer Lett 2018; 421:63-72. [PMID: 29458145 DOI: 10.1016/j.canlet.2018.02.020] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 02/11/2018] [Accepted: 02/12/2018] [Indexed: 11/22/2022]
Abstract
Long non-coding RNAs (lncRNAs) are emerging as important regulators and prognostic markers of multiple cancers. Our aim was to determine functional involvement of lncRNAs in pancreatic ductal adenocarcinoma (PDAC). In this study, we report that LINC01133 expression is higher in PDAC tissues compared to adjacent non-cancerous tissues, and this overexpression is associated with poorer prognosis among the patients. In vitro, a knockdown of LINC01133 substantially decreased PDAC cell proliferation. Tumorigenicity of PDAC cells with the LINC01133 knockdown was significantly impaired in a xenograft model assay. Moreover, we determined that CCAAT/enhancer-binding protein β (C/EBPβ) positively regulates LINC01133 expression by binding to the response elements within the LINC01133 promoter. Higher expression of C/EBPβ was observed in PDAC tissues, and this overexpression was also associated with the poorer prognosis. Furthermore, the LINC01133 knockdown decreased cyclin G1 (CCNG1) expression. Overexpression of CCNG1 attenuated the LINC01133 silencing-induced impairment of proliferation in PDAC cells. In summary, our findings revealed that the C/EBPβ-LINC01133 axis performs an oncogenic function in PDAC by activating CCNG1, which may serve as a prognostic biomarker or a therapeutic target in PDAC.
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Affiliation(s)
- Chen-Song Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Junjun Chu
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Xiao-Xu Zhu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Jian-Hui Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Xi-Tai Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Jian-Peng Cai
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Wei Zhao
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China.
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China.
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Mo SJ, Hou X, Hao XY, Cai JP, Liu X, Chen W, Chen D, Yin XY. EYA4 inhibits hepatocellular carcinoma growth and invasion by suppressing NF-κB-dependent RAP1 transactivation. Cancer Commun (Lond) 2018; 38:9. [PMID: 29764501 PMCID: PMC5993152 DOI: 10.1186/s40880-018-0276-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 11/08/2017] [Indexed: 01/04/2023] Open
Abstract
Background Our previous studies demonstrated that eyes absent homolog 4 (EYA4), a member of the eye development-related EYA family in Drosophila, is frequently methylated and silenced in hepatocellular carcinoma (HCC) specimens and associated with shorter survival. The current work aimed to explore the mechanisms through which EYA4 functions as a tumor suppressor in HCC. Methods Stable EYA4-expressing plasmid (pEYA4) transfectants of the human HCC cell lines Huh-7 and PLC/PRF/5 (PLC) were established. Xenografts tumors were established via subcutaneous injection of the stable transfectants into BALB/c nude mice. Tissue samples were obtained from 75 pathologically diagnosed HCC patients. Quantitative real-time polymerase chain reaction, Western blotting and immunohistochemistry were performed to determine the expression of EYA4 in cell lines, xenografts and clinical specimens. The cell proliferation, colony formation, invasiveness and tumor formation of stable transfectants were studied. A gene expression microarray was utilized to screen genes regulated by EYA4 expression. The effect of EYA4 on nuclear factor-κB (NF-κB)/RAS-related protein 1 (RAP1) signaling was demonstrated through the co-transfection of pEYA4 and Flag-tagged RAS-related protein 1A gene-expressing plasmid (Flag-RAP1A), functional studies, chromatin immunoprecipitation, immunofluorescence staining and cellular ubiquitination assay. Results The restoration of EYA4 expression in HCC cell lines suppressed cell proliferation, inhibited clonogenic outgrowth, reduced cell invasion and restrained xenograft tumor growth, and Flag-RAP1A reversed the suppressive effects of pEYA4 in vitro. Activation of NF-κB with tumor necrosis factor-α (TNF-α) increased the binding of p65 to the RAP1A gene promoter and up-regulated RAP1 protein expression. The inhibition of NF-κB with BAY 11-7085 and p65 siRNA successfully blocked TNF-α-induced RAP1 up-regulation. EYA4 antagonized the TNF-α-induced phosphorylation and ubiquitination of inhibitor of NF-κBα (IκBα) as well as the nuclear translocation and transactivation of p65, resulting in repressed NF-κB activity and RAP1 expression. Blocking the serine/threonine phosphatase activity of EYA4 with calyculin A notably abrogated its suppressive effect on NF-κB activity. In addition, EYA4 expression was inversely correlated with IκBα/RAP1 activity in clinical HCC specimens. Conclusion Our findings provide a functional and mechanistic basis for identifying EYA4 as a bona fide tumor suppressor that disrupts aberrant activation of the NF-κB/RAP1 signaling pathway and thus orchestrates a physiological impediment to HCC growth and invasion.
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Affiliation(s)
- Shi-Jing Mo
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, No. 58, Zhongshan Er Road, Guangzhou, 510080, Guangdong, P. R. China
| | - Xun Hou
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, No. 58, Zhongshan Er Road, Guangzhou, 510080, Guangdong, P. R. China
| | - Xiao-Yi Hao
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, No. 58, Zhongshan Er Road, Guangzhou, 510080, Guangdong, P. R. China
| | - Jian-Peng Cai
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, No. 58, Zhongshan Er Road, Guangzhou, 510080, Guangdong, P. R. China
| | - Xin Liu
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, No. 58, Zhongshan Er Road, Guangzhou, 510080, Guangdong, P. R. China
| | - Wei Chen
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, No. 58, Zhongshan Er Road, Guangzhou, 510080, Guangdong, P. R. China
| | - Dong Chen
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, No. 58, Zhongshan Er Road, Guangzhou, 510080, Guangdong, P. R. China
| | - Xiao-Yu Yin
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, No. 58, Zhongshan Er Road, Guangzhou, 510080, Guangdong, P. R. China.
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Huang CS, Zhai JM, Zhu XX, Cai JP, Chen W, Li JH, Yin XY. BTG2 Is Down-Regulated and Inhibits Cancer Stem Cell-Like Features of Side Population Cells in Hepatocellular Carcinoma. Dig Dis Sci 2017; 62:3501-3510. [PMID: 29098552 DOI: 10.1007/s10620-017-4829-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 10/25/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND Our previous study found that B cell translocation gene 2 (BTG2) was hyper-methylated and down-regulated in side population (SP) cells of hepatocellular carcinoma (HCC) cell line. However, its clinical significances and biological impacts on HCC SP cells remained unclear. AIMS To investigate the prognostic value of BTG2 gene in HCC and its influences on cancer stem cells (CSCs)-like traits of HCC cell line SP cells. METHODS BTG2 expression in human HCC and adjacent non-cancerous tissues was detected by immunohistochemical staining and quantitative real-time PCR, and also obtained from GEO and TCGA data. Its prognostic values were assessed. Its biological influences on HCC cell line SP cells were evaluated using cell viability, cell cycle, plate clone-forming assay, and chemoresistance in vitro and tumorigenicity in vivo. RESULTS BTG2 expression was significantly suppressed in human HCC compared to adjacent non-cancerous tissues. BTG2 expression was correlated with TNM stage, tumor size and vascular invasion. Lower expression of BTG2 was associated with poorer overall survival and disease-free survival. In vitro, overexpression of BTG2 substantially suppressed cell proliferation and accumulation of HCC cell line SP cells in G0/G1 phase. Colony formation ability was markedly suppressed by BTG2 overexpression. Moreover, sensitivity of HCC cell line SP cells to 5-fluorouracil was substantially increased by overexpression of BTG2. Furthermore, tumorigenicity of HCC cell line SP cells transfected with BTG2 plasmids was significantly reduced in vivo. CONCLUSIONS BTG2 gene could regulate the CSC-like traits of HCC cell line SP cells, and it represented as a molecular prognostic marker for HCC.
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Affiliation(s)
- Chen-Song Huang
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Jing-Ming Zhai
- Department of General Surgery, The First Affiliated Hospital, Henan Science and Technology University, Luoyang, 471000, China
| | - Xiao-Xu Zhu
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Jian-Peng Cai
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Wei Chen
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Jian-Hui Li
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Xiao-Yu Yin
- Department of Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China.
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Wang D, Qu SL, Zhao Q, Yin XY, Zhou F. Laboratory studies of ultrasonic wave response of fractures with different lengths: Anisotropy characteristics and coda analysis. Ultrasonics 2017; 80:101-112. [PMID: 28528218 DOI: 10.1016/j.ultras.2017.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 10/27/2016] [Accepted: 05/11/2017] [Indexed: 06/07/2023]
Abstract
Ultrasonic wave propagation in a synthetic medium with different scale fractures is investigated through the physics modeling research. The experiment model consisting of two layers, the first layer is divided into four fractured blocks with a constant fracture density but different dimension and a block without fractures as the reference region. The velocity and reflected amplitude of wave derived from the wide azimuth data processing are anisotropic due to the fractured layer. Coda wave characteristics versus offset and azimuth are obviously different for varying fracture scales. The ratio of wavelength and fracture dimension is an important parameter in the wave-fracture interaction based on the multiple scattering theory. When the wavelength of the incident wave is close to the fracture length, the scattering is dominant in the shot records and the waves are slowed and attenuated largely for the reflections from the bottoms of fractured layer and base model. The physical modeling results demonstrate that it is possible to extract fracture dimension and orientation information by analyzing code and primary waves from the reflection data.
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Affiliation(s)
- D Wang
- SINOPEC Key Laboratory of Geophysics, Nanjing 211103, China; SINOPEC Geophysical Research Institute, Nanjing 211103, China.
| | - S L Qu
- SINOPEC Geophysical Research Institute, Nanjing 211103, China
| | - Q Zhao
- SINOPEC Key Laboratory of Geophysics, Nanjing 211103, China; SINOPEC Geophysical Research Institute, Nanjing 211103, China
| | - X Y Yin
- School of Geosciences, China University of Petroleum, Qingdao 266580, China
| | - F Zhou
- SINOPEC Key Laboratory of Geophysics, Nanjing 211103, China; SINOPEC Geophysical Research Institute, Nanjing 211103, China
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